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ATOME HYDROGENE [83 records]
Record 1 - internal organization data 2025-07-04
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- substituent atom
1, record 1, English, substituent%20atom
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
- substituent 2, record 1, English, substituent
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An atom that replaces a hydrogen atom on the parent structure of a molecule. 3, record 1, English, - substituent%20atom
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- atome substituant
1, record 1, French, atome%20substituant
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- substituant 2, record 1, French, substituant
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Atome qui remplace un atome d’hydrogène sur la structure fondamentale d’une molécule. 3, record 1, French, - atome%20substituant
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2025-07-04
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- substituent group
1, record 2, English, substituent%20group
correct, noun
Record 2, Abbreviations, English
Record 2, Synonyms, English
- substituent 2, record 2, English, substituent
correct, noun
- radical 3, record 2, English, radical
correct, noun, obsolete
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A group of atoms that replaces a hydrogen atom on the parent structure of a molecule. 4, record 2, English, - substituent%20group
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- groupe substituant
1, record 2, French, groupe%20substituant
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- substituant 1, record 2, French, substituant
correct, masculine noun
- radical 1, record 2, French, radical
correct, masculine noun, obsolete
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Groupe d’atomes qui remplace un atome d’hydrogène sur la structure fondamentale d’une molécule. 2, record 2, French, - groupe%20substituant
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2024-06-21
Record 3, English
Record 3, Subject field(s)
- Chemical Elements and Compounds
- Pollutants
Record 3, Main entry term, English
- polyfluoroalkyl substance
1, record 3, English, polyfluoroalkyl%20substance
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- polyfluoroalkylated substance 2, record 3, English, polyfluoroalkylated%20substance
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Polyfluoroalkyl substances are distinguished from perfluoroalkyl substances by not being fully fluorinated. Instead, they have a non-fluorine atom (typically hydrogen or oxygen) attached to at least one, but not all, carbon atoms, while at least two or more of the remaining carbon atoms in the carbon chain tail are fully fluorinated. 3, record 3, English, - polyfluoroalkyl%20substance
Record 3, French
Record 3, Domaine(s)
- Éléments et composés chimiques
- Agents de pollution
Record 3, Main entry term, French
- substance polyfluoroalkylée
1, record 3, French, substance%20polyfluoroalkyl%C3%A9e
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- substance polyfluoroalkylique 2, record 3, French, substance%20polyfluoroalkylique
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Le nom «substance polyfluoroalkylée» [...] est donné aux molécules pour lesquelles les atomes d’hydrogène d’au moins un atome de carbone ont été [remplacés] par des atomes de fluor. 1, record 3, French, - substance%20polyfluoroalkyl%C3%A9e
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2021-07-14
Record 4, English
Record 4, Subject field(s)
- Hydrology and Hydrography
Universal entry(ies) Record 4
Record 4, Main entry term, English
- tritiated water
1, record 4, English, tritiated%20water
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
This happens when a tritium atom replaces a hydrogen atom in water (H2O) to form HTO. HTO has the same chemical properties as water and is also odourless and colourless. 1, record 4, English, - tritiated%20water
Record number: 4, Textual support number: 2 OBS
Chemical formula: HTO 2, record 4, English, - tritiated%20water
Record 4, French
Record 4, Domaine(s)
- Hydrologie et hydrographie
Entrée(s) universelle(s) Record 4
Record 4, Main entry term, French
- eau tritiée
1, record 4, French, eau%20triti%C3%A9e
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
[...] résulte du remplacement d’un atome d’hydrogène dans l'eau(H2O) par un atome de tritium. Le HTO possède les mêmes propriétés chimiques que l'eau et il est également inodore et incolore. 1, record 4, French, - eau%20triti%C3%A9e
Record number: 4, Textual support number: 2 OBS
Formule chimique : HTO 2, record 4, French, - eau%20triti%C3%A9e
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2016-12-21
Record 5, English
Record 5, Subject field(s)
- Chemical Elements and Compounds
- Climate Change
Record 5, Main entry term, English
- nonmethane hydrocarbon
1, record 5, English, nonmethane%20hydrocarbon
correct
Record 5, Abbreviations, English
- NMHC 2, record 5, English, NMHC
see observation
Record 5, Synonyms, English
- non-methane hydrocarbon 3, record 5, English, non%2Dmethane%20hydrocarbon
correct
- NMHC 2, record 5, English, NMHC
see observation
- NMHC 2, record 5, English, NMHC
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Lower Stratospheric Measurement of Non-methane Hydrocarbons. This study is ... important because non-methane hydrocarbons, if present in the stratosphere, will act as a sink for Cl in the same way that methane acts and thus reduce the ozone depletion attributable to chlorine-containing species. 4, record 5, English, - nonmethane%20hydrocarbon
Record number: 5, Textual support number: 1 OBS
NMHC: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion. 5, record 5, English, - nonmethane%20hydrocarbon
Record number: 5, Textual support number: 2 OBS
non-methane hydrocarbon; NMHC: term and abbreviation extracted from the “Glossaire de l’environnement” and reproduced with permission of the Organisation for Economic Co-operation and Development. 6, record 5, English, - nonmethane%20hydrocarbon
Record 5, French
Record 5, Domaine(s)
- Éléments et composés chimiques
- Changements climatiques
Record 5, Main entry term, French
- hydrocarbure autre que le méthane
1, record 5, French, hydrocarbure%20autre%20que%20le%20m%C3%A9thane
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- hydrocarbure non méthanique 2, record 5, French, hydrocarbure%20non%20m%C3%A9thanique
correct, see observation, masculine noun
- HCNM 3, record 5, French, HCNM
see observation, masculine noun
- HCNM 3, record 5, French, HCNM
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Hydrocarbure ou dérivé d’hydrocarbure composé de plus d’un atome de carbone et d’atomes d’hydrogène, ces derniers pouvant être partiellement ou entièrement remplacés par des halogènes. 4, record 5, French, - hydrocarbure%20autre%20que%20le%20m%C3%A9thane
Record number: 5, Textual support number: 1 OBS
Les HCNM regroupent tous les hydrocarbures halogénés, à l’exception des halométhanes. 4, record 5, French, - hydrocarbure%20autre%20que%20le%20m%C3%A9thane
Record number: 5, Textual support number: 2 OBS
HCNM : abréviation non officielle; ne pas l’utiliser seule, pour éviter tout risque de confusion. 5, record 5, French, - hydrocarbure%20autre%20que%20le%20m%C3%A9thane
Record number: 5, Textual support number: 3 OBS
hydrocarbure autre que le méthane; hydrocarbure non méthanique : termes extraits du «Glossaire de l’environnement» et reproduits avec l’autorisation de l’Organisation de coopération et de développement économiques. 6, record 5, French, - hydrocarbure%20autre%20que%20le%20m%C3%A9thane
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Elementos y compuestos químicos
- Cambio climático
Record 5, Main entry term, Spanish
- hidrocarburo que excluye el metano
1, record 5, Spanish, hidrocarburo%20que%20excluye%20el%20metano
correct, masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
- hidrocarburo no metánico 1, record 5, Spanish, hidrocarburo%20no%20met%C3%A1nico
correct, masculine noun
Record 5, Textual support, Spanish
Record 6 - internal organization data 2016-12-21
Record 6, English
Record 6, Subject field(s)
- Chemical Elements and Compounds
- Pollutants
Record 6, Main entry term, English
- trihalomethane
1, record 6, English, trihalomethane
correct
Record 6, Abbreviations, English
- THM 1, record 6, English, THM
correct
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Trihalomethanes (THM) are a group of four chemicals that are formed along with other disinfection by products when chlorine or other disinfectants used to control microbial contaminants in drinking water react with naturally occurring organic and inorganic matter in water. The trihalomethanes are chloroform, bromodichloromethane, dibromochloromethane, and bromoform. 2, record 6, English, - trihalomethane
Record number: 6, Textual support number: 1 OBS
trihalomethane; THM: term and abbreviation extracted from the “Glossaire de l’environnement” and reproduced with permission of the Organisation for Economic Co-operation and Development. 3, record 6, English, - trihalomethane
Record 6, French
Record 6, Domaine(s)
- Éléments et composés chimiques
- Agents de pollution
Record 6, Main entry term, French
- trihalométhane
1, record 6, French, trihalom%C3%A9thane
correct, masculine noun
Record 6, Abbreviations, French
- THM 1, record 6, French, THM
correct, masculine noun
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 OBS
Les trihalométhanes comprennent, outre le chloroforme ou trichlorométhane, le bromoforme(ou tribromométhane), le fluoroforme(ou trifluorométhane) ainsi que l'iodoforme(ou triiodométhane). Ces produits sont des dérivés du méthane composés d’un atome de carbone, d’un atome d’hydrogène et de trois atomes d’halogène. 2, record 6, French, - trihalom%C3%A9thane
Record number: 6, Textual support number: 2 OBS
trihalométhane; THM : terme et abréviation extraits du «Glossaire de l’environnement» et reproduits avec l’autorisation de l’Organisation de coopération et de développement économiques. 2, record 6, French, - trihalom%C3%A9thane
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Elementos y compuestos químicos
- Agentes contaminantes
Record 6, Main entry term, Spanish
- trihalometano
1, record 6, Spanish, trihalometano
correct, masculine noun
Record 6, Abbreviations, Spanish
- THM 1, record 6, Spanish, THM
correct, masculine noun
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Compuesto en el cual tres de los átomos de hidrógeno de la molécula de metano han sido reemplazados por átomos de cloro, bromo o yodo. 1, record 6, Spanish, - trihalometano
Record number: 6, Textual support number: 1 OBS
Se puede formar a partir de la materia orgánica del agua que ha sido tratada o desinfectada por halógenos (excepto el flúor) u oxidantes capaces de liberar halógenos. 1, record 6, Spanish, - trihalometano
Record 7 - internal organization data 2016-02-25
Record 7, English
Record 7, Subject field(s)
- Biochemistry
Record 7, Main entry term, English
- hydroquinone form 1, record 7, English, hydroquinone%20form
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 OBS
Ubiquinone is a ring-shaped molecule with two oxygen atoms attached to it (...). In the fully oxidized, or quinone form, both oxygen atoms are connected to the ring by double bonds. Attaching a hydrogen atom to one of the oxygen creates the semiquinone form, or QH.. In the fully reduced form, called hydroquinone or QH2, both oxygen have hydrogen atoms attached. 1, record 7, English, - hydroquinone%20form
Record 7, French
Record 7, Domaine(s)
- Biochimie
Record 7, Main entry term, French
- forme hydroquinonique 1, record 7, French, forme%20hydroquinonique
Record 7, Abbreviations, French
Record 7, Synonyms, French
- forme hydroquinone 1, record 7, French, forme%20hydroquinone
Record 7, Textual support, French
Record number: 7, Textual support number: 1 OBS
L'ubiquinone est une molécule cyclique sur laquelle sont fixés deux atomes d’oxygène(...) Dans la forme la plus oxydée, ou forme quinonique, les deux atomes d’oxygène sont reliés au cycle benzénique par des doubles liaisons. Dans la forme semiquinonique ou QH., un atome d’hydrogène est fixé à l'un des oxygènes. A l'état le plus réduit, appelé forme hydroquinonique ou QH2, deux atomes d’hydrogène sont liés aux deux atomes d’oxygène. 1, record 7, French, - forme%20hydroquinonique
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2016-02-25
Record 8, English
Record 8, Subject field(s)
- Biochemistry
Record 8, Main entry term, English
- semiquinone form 1, record 8, English, semiquinone%20form
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 OBS
Ubiquinone is a ring-shaped molecule with two oxygen atoms attached to it (...) In the fully oxidized, or quinone form, both oxygen atoms are connected to the ring by double bonds. Attaching a hydrogen atom to one of the oxygen creates the semiquinone form (...). 1, record 8, English, - semiquinone%20form
Record 8, French
Record 8, Domaine(s)
- Biochimie
Record 8, Main entry term, French
- forme semiquinonique 1, record 8, French, forme%20semiquinonique
Record 8, Abbreviations, French
Record 8, Synonyms, French
- forme semiquinone 1, record 8, French, forme%20semiquinone
Record 8, Textual support, French
Record number: 8, Textual support number: 1 OBS
L'ubiquinone est une molécule cyclique sur laquelle sont fixés deux atomes d’oxygène(...) Dans la forme la plus oxydée, ou forme quinonique, les deux atomes d’oxygène sont reliés au cycle benzénique par des doubles liaisons. Dans la forme semiquinonique(...), un atome d’hydrogène est fixé à l'un des oxygènes. 1, record 8, French, - forme%20semiquinonique
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2015-02-17
Record 9, English
Record 9, Subject field(s)
- Chemistry
- Atomic Physics
Record 9, Main entry term, English
- valence
1, record 9, English, valence
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- valency 2, record 9, English, valency
correct
- valance 3, record 9, English, valance
obsolete
- atomicity 4, record 9, English, atomicity
less frequent
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
The maximum number of univalent atoms (originally hydrogen or chlorine atoms) that may combine with an atom of the element under consideration, or with a fragment, or for which an atom of this element can be substituted. 5, record 9, English, - valence
Record number: 9, Textual support number: 1 CONT
Ion exchange materials are insoluble solid granules ... having the property, when placed in contact with a liquid containing ions in solution, of exchanging, valence for valence, some of the ions of which they are composed for other ions existing in the solution, without thereby dissolving or sustaining any structural modification. 6, record 9, English, - valence
Record number: 9, Textual support number: 1 OBS
The concept of valence has been interpreted by different models and theories in theoretical organic chemistry: the valence bond configuration mixing model (VBCM); the valence bond theory (VB); the valence-shell-electron-pair repulsion theory (VSEPR). [Source: "Pure and Applied Chemistry", Vol. 71, 1999, pages 1919-1981).] More work has defined the valence in terms of "non-active valence electrons", "active valence nucleons", "chemically active valence electrons", "chemically active (valence) and inert (core) electrons" and "active valence orbitals". 7, record 9, English, - valence
Record 9, French
Record 9, Domaine(s)
- Chimie
- Physique atomique
Record 9, Main entry term, French
- valence
1, record 9, French, valence
correct, feminine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
- atomicité 2, record 9, French, atomicit%C3%A9
feminine noun, less frequent
- valence atomique 2, record 9, French, valence%20atomique
feminine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Nombre maximal d’atomes univalents(originalement des atomes d’hydrogène ou de chlore) qui peuvent se combiner avec un atome de l'élément considéré, ou avec un fragment ou pour lequel un atome de cet élément peut être substitué. 3, record 9, French, - valence
Record number: 9, Textual support number: 1 CONT
Alors que le neptunium, comme ses voisins dans la classification périodique des éléments, uranium et plutonium, possède de multiples états de valence relativement stables en milieu nitrique : Np(IV), Np(V), Np(VI), l’américium et le curium se caractérisent, comme les terres rares, par une valence III très stable sinon unique. 4, record 9, French, - valence
Record 9, Spanish
Record 9, Campo(s) temático(s)
- Química
- Física atómica
Record 9, Main entry term, Spanish
- valencia
1, record 9, Spanish, valencia
correct, feminine noun
Record 9, Abbreviations, Spanish
Record 9, Synonyms, Spanish
- atomicidad 2, record 9, Spanish, atomicidad
correct, feminine noun
- valencia atómica 3, record 9, Spanish, valencia%20at%C3%B3mica
correct, feminine noun
Record 9, Textual support, Spanish
Record number: 9, Textual support number: 1 DEF
Número representativo de la proporción en que un átomo es susceptible de combinarse con otros átomos; depende en general del número y la disposición de los electrones de la capa electrónica externa del átomo, llamada «capa de valencia» («valence shell»). 4, record 9, Spanish, - valencia
Record 10 - external organization data 2014-10-30
Record 10, English
Record 10, Subject field(s)
- Compartment - Canadian Nuclear Safety Commission
- Atomic Physics
Record 10, Main entry term, English
- proton
1, record 10, English, proton
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 DEF
An elementary particle of positive charge which forms the nucleus of the ordinary hydrogen atom of mass 1; ... 1, record 10, English, - proton
Record 10, French
Record 10, Domaine(s)
- Tiroir - Commission canadienne de sûreté nucléaire
- Physique atomique
Record 10, Main entry term, French
- proton
1, record 10, French, proton
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Particule fondamentale baryonique la plus légère porteuse d’une charge positive élémentaire. 1, record 10, French, - proton
Record number: 10, Textual support number: 1 CONT
Le proton forme, avec son homologue neutre, le neutron, la famille des nucléons, constituants essentiels des noyaux atomiques. Le proton est ainsi le noyau de l'atome d’hydrogène. 1, record 10, French, - proton
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2014-08-26
Record 11, English
Record 11, Subject field(s)
- Radiological Physics (Theory and Application)
- Atomic Physics
- Chemistry
Record 11, Main entry term, English
- muonic hydrogen
1, record 11, English, muonic%20hydrogen
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
... muonic hydrogen — atoms made up of one proton and one muon, the heavy cousin to the electron. 1, record 11, English, - muonic%20hydrogen
Record 11, French
Record 11, Domaine(s)
- Physique radiologique et applications
- Physique atomique
- Chimie
Record 11, Main entry term, French
- hydrogène muonique
1, record 11, French, hydrog%C3%A8ne%20muonique
correct, masculine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
[...] l'hydrogène muonique(un atome d’hydrogène où l'électron a été remplacé par un muon). 1, record 11, French, - hydrog%C3%A8ne%20muonique
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2014-05-27
Record 12, English
Record 12, Subject field(s)
- Anti-pollution Measures
- Chemistry
- Biochemistry
Record 12, Main entry term, English
- organic compound
1, record 12, English, organic%20compound
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
Chemical compounds based on carbon chains or rings and also containing hydrogen, with or without oxygen, nitrogen, and other elements. 2, record 12, English, - organic%20compound
Record number: 12, Textual support number: 1 PHR
Family of organic compound. 3, record 12, English, - organic%20compound
Record 12, French
Record 12, Domaine(s)
- Mesures antipollution
- Chimie
- Biochimie
Record 12, Main entry term, French
- composé organique
1, record 12, French, compos%C3%A9%20organique
correct, masculine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
Un composé chimique est dit «organique »lorsque sa molécule possède au moins un atome de carbone(C) lié, au moins, à un atome d’hydrogène(H). Il existe donc une très grande diversité de composés organiques qui peuvent se rencontrer à l'état solide, liquide ou gazeux. De façon générale, les molécules organiques jouent un rôle important dans les réactions chimiques se produisant dans les organismes vivants et sont au cœur de l'industrie humaine via notamment les produits dérivés du pétrole. 2, record 12, French, - compos%C3%A9%20organique
Record number: 12, Textual support number: 1 PHR
Famille de composés organiques. 3, record 12, French, - compos%C3%A9%20organique
Record number: 12, Textual support number: 2 PHR
Composé organique peu soluble. 3, record 12, French, - compos%C3%A9%20organique
Record 12, Spanish
Record 12, Campo(s) temático(s)
- Medidas contra la contaminación
- Química
- Bioquímica
Record 12, Main entry term, Spanish
- compuesto orgánico
1, record 12, Spanish, compuesto%20org%C3%A1nico
correct, masculine noun
Record 12, Abbreviations, Spanish
Record 12, Synonyms, Spanish
Record 12, Textual support, Spanish
Record number: 12, Textual support number: 1 DEF
Compuesto que contiene carbono, salvo el dióxido de carbono y algunos carbonatos. 2, record 12, Spanish, - compuesto%20org%C3%A1nico
Record 13 - internal organization data 2013-09-03
Record 13, English
Record 13, Subject field(s)
- Chemical Elements and Compounds
- CBRNE Weapons
Universal entry(ies) Record 13
Record 13, Main entry term, English
- xylyl bromide
1, record 13, English, xylyl%20bromide
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
- alpha-bromoxylene 2, record 13, English, alpha%2Dbromoxylene
correct, see observation
Record 13, Textual support, English
Record number: 13, Textual support number: 1 OBS
Mixed ortho-, meta-, and para-isomers. Properties: Colorless liquid; pleasant aromatic odor. Decomposed slowly by water. Sp. gr. 1.4; b.p. 210-220 ° C. Combustible. Derivation: Bromination of xylene. Grade: Technical. Containers: Lead-lined drums. Hazard: Toxic by inhalation, and ingestion; strong irritant to eyes, skin, and tissue. Uses: Organic synthesis; tear gas. Shipping regulations: Irritant label. Not acceptable passenger. 2, record 13, English, - xylyl%20bromide
Record number: 13, Textual support number: 2 OBS
alpha-bromoxylene: The word "alpha" must be replaced by the corresponding Greek letter or italicized. 3, record 13, English, - xylyl%20bromide
Record number: 13, Textual support number: 3 OBS
Chemical formula: CH3C6H4CH2Br 3, record 13, English, - xylyl%20bromide
Record 13, Key term(s)
- a-bromoxylene
Record 13, French
Record 13, Domaine(s)
- Éléments et composés chimiques
- Armes CBRNE
Entrée(s) universelle(s) Record 13
Record 13, Main entry term, French
- bromure de xylyle
1, record 13, French, bromure%20de%20xylyle
correct, masculine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
Xylyle : Radical monovalent [...] dérivé des xylènes par enlèvement d’un atome d’hydrogène sur le noyau(=xényle) ou dans une chaîne latérale. Ex. : bromure de m-xylyle CH3C6H4CH2Br. 2, record 13, French, - bromure%20de%20xylyle
Record 13, Spanish
Record 13, Campo(s) temático(s)
- Elementos y compuestos químicos
- Armas QBRNE
Entrada(s) universal(es) Record 13
Record 13, Main entry term, Spanish
- bromuro de xililo
1, record 13, Spanish, bromuro%20de%20xililo
correct, masculine noun
Record 13, Abbreviations, Spanish
Record 13, Synonyms, Spanish
Record 13, Textual support, Spanish
Record number: 13, Textual support number: 1 DEF
Líquido incoloro, de olor agradable. Muy irritante para ojos, piel y tejidos. Combustible. Tóxico por ingestión e inhalación. 1, record 13, Spanish, - bromuro%20de%20xililo
Record number: 13, Textual support number: 1 OBS
Fórmula química: CH3 C6 H4 CH2Br 2, record 13, Spanish, - bromuro%20de%20xililo
Record 14 - internal organization data 2012-02-29
Record 14, English
Record 14, Subject field(s)
- Metrology and Units of Measure
Universal entry(ies) Record 14
Record 14, Main entry term, English
- nanometre
1, record 14, English, nanometre
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
- nanometer 2, record 14, English, nanometer
correct
- millimicron 3, record 14, English, millimicron
former designation, correct
- nanon 4, record 14, English, nanon
familiar
- millimicrometer 5, record 14, English, millimicrometer
avoid, see observation
- millimu 6, record 14, English, millimu
see observation
Record 14, Textual support, English
Record number: 14, Textual support number: 1 DEF
One billionth of a metre. 7, record 14, English, - nanometre
Record number: 14, Textual support number: 1 CONT
A nanometer (nm) is 1,000 times smaller than a micrometer. It is equal to 1/1,000,000,000th or one-billionth of a meter. When things are this small, you can't see them with your eyes, or a light microscope. Objects this small require a special tool called a scanning probe microscope ... Atoms are smaller than a nanometer. One atom measures ~0.1-0.3 nm, depending on the element. 8, record 14, English, - nanometre
Record number: 14, Textual support number: 1 OBS
[According to the International System of Units (SI)], compound prefix names or symbols, that is, prefix names or symbols formed by the juxtaposition of two or more prefix names or symbols, are not permitted. Example: nm (nanometer) but not mμm (millimicrometer). 5, record 14, English, - nanometre
Record number: 14, Textual support number: 2 OBS
mµ, mµm, millimu: The letters u or mu are sometimes used when the Greek letter µ is not available. 9, record 14, English, - nanometre
Record 14, Key term(s)
- nano meter
- nano metre
- millimicrometre
Record 14, French
Record 14, Domaine(s)
- Unités de mesure et métrologie
Entrée(s) universelle(s) Record 14
Record 14, Main entry term, French
- nanomètre
1, record 14, French, nanom%C3%A8tre
correct, masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
- millimicron 2, record 14, French, millimicron
former designation, correct, masculine noun
- millimicromètre 3, record 14, French, millimicrom%C3%A8tre
avoid, see observation, masculine noun
- millimu 4, record 14, French, millimu
see observation, masculine noun
Record 14, Textual support, French
Record number: 14, Textual support number: 1 DEF
Unité de mesure de longueur, équivalant à un milliardième de mètre. 5, record 14, French, - nanom%C3%A8tre
Record number: 14, Textual support number: 1 CONT
Le nanomètre(nm) correspond à un milliardième de mètre. L'échelle nano est celle de l'atome et des molécules : un atome d’hydrogène a un diamètre de 0, 1 nm, et une molécule d’ADN, une longueur d’environ 2, 5 nm [...] Les nanosciences étudient les phénomènes et la manipulation des matériaux à l'échelle dunanomètre. Par nanotechnologies, on entend la conception, la production et l'exploitation de structures et d’appareils d’une taille comprise entre 0, 1 et 100 nanomètres. 6, record 14, French, - nanom%C3%A8tre
Record number: 14, Textual support number: 1 OBS
1 millimètre (mm) [...] = 1 million de nanomètres = 10 millions d’angströms; 1 micron = 1,000 nanomètres (nm) = 10,000 angströms; 1 nanomètre = 10 angstroms. 7, record 14, French, - nanom%C3%A8tre
Record number: 14, Textual support number: 2 OBS
[Dans le système international d’unités (SI)], les symboles de préfixes composés, c’est-à-dire les symboles de préfixes formés par juxtaposition de deux ou plusieurs symboles de préfixes, sont interdits. Cette règle s’applique aussi aux noms de préfixes composés. Exemple : nm (nanometre)mais pas mμm (millimicrometre). 8, record 14, French, - nanom%C3%A8tre
Record 14, Key term(s)
- nano-mètre
Record 14, Spanish
Record 14, Campo(s) temático(s)
- Metrología y unidades de medida
Entrada(s) universal(es) Record 14
Record 14, Main entry term, Spanish
- nanómetro
1, record 14, Spanish, nan%C3%B3metro
correct, masculine noun
Record 14, Abbreviations, Spanish
Record 14, Synonyms, Spanish
Record 14, Textual support, Spanish
Record number: 14, Textual support number: 1 DEF
Medida de longitud que equivale a la milmillonésima (10 [superíndice] -9) parte del metro. 2, record 14, Spanish, - nan%C3%B3metro
Record 15 - internal organization data 2012-01-04
Record 15, English
Record 15, Subject field(s)
- Chemical Elements and Compounds
Record 15, Main entry term, English
- alkylated group
1, record 15, English, alkylated%20group
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
Record 15, Textual support, English
Record 15, French
Record 15, Domaine(s)
- Éléments et composés chimiques
Record 15, Main entry term, French
- groupe alkylé
1, record 15, French, groupe%20alkyl%C3%A9
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- groupe alcoylé 1, record 15, French, groupe%20alcoyl%C3%A9
avoid, masculine noun
Record 15, Textual support, French
Record number: 15, Textual support number: 1 DEF
Groupe qui renferme un groupe alkyle(en anglais :«alkyl group»), c'est-à-dire un groupe univalent CnH2n+1 résultant formellement de l'arrachement d’un atome d’hydrogène à un alcane. 1, record 15, French, - groupe%20alkyl%C3%A9
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 2012-01-04
Record 16, English
Record 16, Subject field(s)
- Chemical Elements and Compounds
Record 16, Main entry term, English
- aryl azide
1, record 16, English, aryl%20azide
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
- aryl azid 2, record 16, English, aryl%20azid
avoid
Record 16, Textual support, English
Record number: 16, Textual support number: 1 CONT
The organic azids are represented by two groups of compounds, the alkyl and aryl azides, RN3, and the acid azides, RCON3. 3, record 16, English, - aryl%20azide
Record 16, French
Record 16, Domaine(s)
- Éléments et composés chimiques
Record 16, Main entry term, French
- arylazide
1, record 16, French, arylazide
correct, masculine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
- aryl azide 2, record 16, French, aryl%20azide
avoid, masculine noun
Record 16, Textual support, French
Record number: 16, Textual support number: 1 DEF
Composé organique de formule R-N3, dérivé de l'acide azothydrique en remplaçant l'atome d’hydrogène par un radical aryle. 3, record 16, French, - arylazide
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 2011-11-02
Record 17, English
Record 17, Subject field(s)
- Chemistry
Record 17, Main entry term, English
- bivalent o-o structure
1, record 17, English, bivalent%20o%2Do%20structure
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 CONT
... an organic peroxide that contains the bivalent o-o structure [is included in class C - Oxidizing Materials]. 1, record 17, English, - bivalent%20o%2Do%20structure
Record 17, French
Record 17, Domaine(s)
- Chimie
Record 17, Main entry term, French
- structure bivalente o-o
1, record 17, French, structure%20bivalente%20o%2Do
correct, feminine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, Textual support number: 1 CONT
"peroxyde organique" : Composé organique contenant la structure bivalente-o-o-et qu'on peut considérer comme un dérivé du peroxyde d’hydrogéne dans lequel un atome d’hydrogène ou plus ont été remplacés par des radicaux organiques. 2, record 17, French, - structure%20bivalente%20o%2Do
Record number: 17, Textual support number: 1 OBS
Matière comburante 3, record 17, French, - structure%20bivalente%20o%2Do
Record 17, Spanish
Record 17, Campo(s) temático(s)
- Química
Record 17, Main entry term, Spanish
- estructura bivalente -O-O-
1, record 17, Spanish, estructura%20bivalente%20%2DO%2DO%2D
correct, feminine noun
Record 17, Abbreviations, Spanish
Record 17, Synonyms, Spanish
- grupo bivalente O-O 2, record 17, Spanish, grupo%20bivalente%20O%2DO
masculine noun
Record 17, Textual support, Spanish
Record number: 17, Textual support number: 1 CONT
"Peróxido orgánico" significa un compuesto que contiene la estructura bivalente -O-O- [...] 1, record 17, Spanish, - estructura%20bivalente%20%2DO%2DO%2D
Record number: 17, Textual support number: 2 CONT
peróxido - Cualquier compuesto que contenga el grupo bivalente O-O 2, record 17, Spanish, - estructura%20bivalente%20%2DO%2DO%2D
Record 18 - internal organization data 2011-11-02
Record 18, English
Record 18, Subject field(s)
- Chemistry
Record 18, Main entry term, English
- bonding number
1, record 18, English, bonding%20number
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
Record 18, Textual support, English
Record number: 18, Textual support number: 1 CONT
The "bonding number" of a neutral heteroatom in the corresponding unsubstituted parent compound is defined as the sum of the total number of bonds to adjacent skeletal atoms, if any, and the number of hydrogen atoms attached to it, if any. 2, record 18, English, - bonding%20number
Record 18, French
Record 18, Domaine(s)
- Chimie
Record 18, Main entry term, French
- indice de valence formelle
1, record 18, French, indice%20de%20valence%20formelle
correct, masculine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 DEF
Nombre total de liaisons à deux électrons qu'un atome d’un hydrure fondamental peut contracter avec les atomes adjacents, y compris ceux d’hydrogène. 2, record 18, French, - indice%20de%20valence%20formelle
Record number: 18, Textual support number: 1 OBS
indice de valence formelle : terme et définition publiés au Journal officiel de la République française le 8 octobre 2003. 3, record 18, French, - indice%20de%20valence%20formelle
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 2011-09-27
Record 19, English
Record 19, Subject field(s)
- Atomic Physics
- Chemistry
Record 19, Main entry term, English
- nuclear neutron
1, record 19, English, nuclear%20neutron
correct
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record 19, French
Record 19, Domaine(s)
- Physique atomique
- Chimie
Record 19, Main entry term, French
- neutron nucléaire
1, record 19, French, neutron%20nucl%C3%A9aire
correct, masculine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 CONT
L'eau lourde est la substance qui sert de modérateur dans un réacteur CANDU. L'eau lourde contient du deutérium, un isotope de l'atome d’hydrogène ayant un neutron nucléaire. 1, record 19, French, - neutron%20nucl%C3%A9aire
Record number: 19, Textual support number: 1 OBS
Emploi des réacteurs nucléaires. Les neutrons sont presque exclusivement produits par les réacteurs nucléaires. 2, record 19, French, - neutron%20nucl%C3%A9aire
Record 19, Spanish
Record 19, Textual support, Spanish
Record 20 - internal organization data 2011-08-09
Record 20, English
Record 20, Subject field(s)
- Chemistry
Record 20, Main entry term, English
- acylation
1, record 20, English, acylation
correct
Record 20, Abbreviations, English
Record 20, Synonyms, English
Record 20, Textual support, English
Record number: 20, Textual support number: 1 DEF
Any process whereby the acyl group, a radical formed from an organic acid by removal of a hydroxyl group, is incorporated into a molecule by treatment with a carboxylic acid, its anhydride or its chloride. 2, record 20, English, - acylation
Record number: 20, Textual support number: 1 CONT
The acylation or alkylation of the enzymes with reactive monomers is governed to a large extent by the nucleophilicity of the amino acid side radicals and hence by the pH of the reaction solution and the reactivity of the acylating or alkylating monomers used.... Compared with immobilization through activated matrices, the products obtained by the above-described process have a neutral matrix; do not adsorb substrate or reaction product; retain kinetic properties substantially unchanged; and show statistical distribution of the protein in the polymer. 3, record 20, English, - acylation
Record 20, French
Record 20, Domaine(s)
- Chimie
Record 20, Main entry term, French
- acylation
1, record 20, French, acylation
correct, feminine noun
Record 20, Abbreviations, French
Record 20, Synonyms, French
Record 20, Textual support, French
Record number: 20, Textual support number: 1 DEF
Substitution, dans une molécule, d’un atome d’hydrogène par un radical acyle R-CO-. [...] C'est une des réactions les plus importantes de la synthèse organique. C'est en général une substitution électrophile, où le réactif peut être un ester, un chlorure ou un anhydride d’acide, et dont l'intervention est bien étudiée en biochimie. 1, record 20, French, - acylation
Record number: 20, Textual support number: 1 CONT
La chymotrypsine est une enzyme qui hydrolyse les protéines en coupant la liaison peptidique entre le carboxyle d’un amino-acide aromatique et l’amide de n’importe quel autre résidu. Dans le mécanisme d’action de la chymotrypsine [...], la désacylation de la protéine est l’étape déterminante de la vitesse de réaction : une étape intermédiaire essentielle est donc l’acylation de la sérine en cours de réaction par le carboxyle du peptide. L’hydrolyse de substrats modèles par la chymotrypsine suggère une catalyse acide-base par un imidazole. 2, record 20, French, - acylation
Record number: 20, Textual support number: 1 OBS
Ne pas confondre avec «alkylation». 3, record 20, French, - acylation
Record 20, Spanish
Record 20, Campo(s) temático(s)
- Química
Record 20, Main entry term, Spanish
- acilación
1, record 20, Spanish, acilaci%C3%B3n
correct, feminine noun
Record 20, Abbreviations, Spanish
Record 20, Synonyms, Spanish
Record 20, Textual support, Spanish
Record 21 - internal organization data 2011-08-05
Record 21, English
Record 21, Subject field(s)
- Chemistry
Record 21, Main entry term, English
- tautomer
1, record 21, English, tautomer
correct
Record 21, Abbreviations, English
Record 21, Synonyms, English
- tautomeric compound 2, record 21, English, tautomeric%20compound
correct
Record 21, Textual support, English
Record number: 21, Textual support number: 1 DEF
tautomers: Structural isomers of different energies which are interconvertible via a low energy barrier ... 3, record 21, English, - tautomer
Record number: 21, Textual support number: 1 OBS
... the isomerization involves atom or group migration. 3, record 21, English, - tautomer
Record 21, French
Record 21, Domaine(s)
- Chimie
Record 21, Main entry term, French
- tautomère
1, record 21, French, tautom%C3%A8re
correct, masculine noun
Record 21, Abbreviations, French
Record 21, Synonyms, French
Record 21, Textual support, French
Record number: 21, Textual support number: 1 DEF
[tautomères : Isomères] dont les structures diffèrent par la position d’un atome, en général d’hydrogène, et d’une ou de plusieurs liaisons multiples et qui sont capables de se transformer facilement et réversiblement l'un en l'autre. 2, record 21, French, - tautom%C3%A8re
Record number: 21, Textual support number: 1 CONT
Ce type d’isomérie porte le nom [...] de tautomérie et les isomères sont des tautomères; elle est habituellement liée au transfert d’un proton d’un atome de carbone à un atome d’un élément polyvalent avec migration d’une double liaison [...] 3, record 21, French, - tautom%C3%A8re
Record number: 21, Textual support number: 1 OBS
tautomère : terme et définition publiés au Journal officiel de la République française le 18 avril 2001. 4, record 21, French, - tautom%C3%A8re
Record 21, Spanish
Record 21, Campo(s) temático(s)
- Química
Record 21, Main entry term, Spanish
- tautómero
1, record 21, Spanish, taut%C3%B3mero
masculine noun
Record 21, Abbreviations, Spanish
Record 21, Synonyms, Spanish
Record 21, Textual support, Spanish
Record 22 - internal organization data 2011-08-05
Record 22, English
Record 22, Subject field(s)
- Chemical Elements and Compounds
- Biochemistry
Record 22, Main entry term, English
- carbohydrate
1, record 22, English, carbohydrate
correct
Record 22, Abbreviations, English
Record 22, Synonyms, English
- hydrate of carbon 2, record 22, English, hydrate%20of%20carbon
correct
- saccharide 2, record 22, English, saccharide
correct
Record 22, Textual support, English
Record number: 22, Textual support number: 1 DEF
An organic compound of carbon with oxygen and hydrogen in the proportion to form water. 3, record 22, English, - carbohydrate
Record number: 22, Textual support number: 1 OBS
The generic term carbohydrate includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more terminal groups to carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom, an amino group, thiol group or similar groups. It also includes derivatives of these compounds. 4, record 22, English, - carbohydrate
Record number: 22, Textual support number: 2 OBS
carbohydrates: Originally, compounds such as aldoses and ketoses, having the stoichiometric formula Cn(H2O)n, hence "hydrates of carbon." 4, record 22, English, - carbohydrate
Record number: 22, Textual support number: 3 OBS
[Carbohydrates] are divided into sugars proper ..., grape-sugars or glucoses ..., and amyloses, comprising starch and woody fibre ... 3, record 22, English, - carbohydrate
Record number: 22, Textual support number: 4 OBS
Carbohydrates are important providers of energy. They are formed in nature through photosynthesis and are the precursors of the hydrocarbon energy stores in fossil fuels. 5, record 22, English, - carbohydrate
Record number: 22, Textual support number: 5 OBS
Compare with glucidic, of which the term carbohydrate, is sometimes used as a synonym when used as a noun modifier (for example, in expressions such as carbohydrate content). 5, record 22, English, - carbohydrate
Record 22, Key term(s)
- carbon hydrate
Record 22, French
Record 22, Domaine(s)
- Éléments et composés chimiques
- Biochimie
Record 22, Main entry term, French
- hydrate de carbone
1, record 22, French, hydrate%20de%20carbone
correct, see observation, masculine noun
Record 22, Abbreviations, French
Record 22, Synonyms, French
- glucide 2, record 22, French, glucide
correct, see observation, masculine noun
- saccharide 3, record 22, French, saccharide
correct, masculine noun
- carbohydrate 4, record 22, French, carbohydrate
correct, see observation, masculine noun, less frequent
Record 22, Textual support, French
Record number: 22, Textual support number: 1 DEF
Dénomination générique qui couvre les monosaccharides, les disaccharides, les oligosaccharides et les polysaccharides [ainsi que] leurs produits de réduction, tels les alditols, leurs produits d’oxydation, tels les acides sacchariques monosaccharides, [et] leurs dérivés obtenus par remplacement d’un ou de plusieurs groupes hydroxy, par exemple, par un atome d’hydrogène, un groupe amino ou un groupe thiol. 5, record 22, French, - hydrate%20de%20carbone
Record number: 22, Textual support number: 1 OBS
hydrates de carbone; carbohydrates. Ces noms tirent leur origine de leur composition chimique : Cn(H2O)n; ce sont des molécules organiques, sucres simples (glucosamine, monosaccharides : glucose, fructose, galactose ou dissacharides : saccharose, lactose, maltose, etc.) ou sucres complexes (polysaccharides : amidon, glycogène, cellulose, etc.), composées d’hydrogène, de carbone et d’oxygène. 6, record 22, French, - hydrate%20de%20carbone
Record number: 22, Textual support number: 2 OBS
Au début du XXième siècle, les dénominations glucides et hydrates de carbone étaient des synonymes exacts pour indiquer la composition générale des hydrates de carbone, une molécule d’eau liée à un atome de carbone. Avec le temps et la découverte de nouvelles molécules en chimie et en biochimie, la définition des hydrates de carbone formés de carbone, hydrogène et oxygène s’est élargie pour englober des molécules contenant de l'azote, du soufre ou du phosphore. Aujourd’hui, les glucides comprennent aussi ces nouvelles molécules telles que la glucosamine. 6, record 22, French, - hydrate%20de%20carbone
Record number: 22, Textual support number: 3 OBS
hydrate de carbone : terme surtout utilisé par les chimistes (en relation avec les substances naturelles). 6, record 22, French, - hydrate%20de%20carbone
Record number: 22, Textual support number: 4 OBS
glucide : terme surtout utilisé en biochimie et en chimie alimentaire (en relation avec la matière vivante). 6, record 22, French, - hydrate%20de%20carbone
Record 22, Spanish
Record 22, Campo(s) temático(s)
- Elementos y compuestos químicos
- Bioquímica
Record 22, Main entry term, Spanish
- hidrato de carbono
1, record 22, Spanish, hidrato%20de%20carbono
correct, masculine noun
Record 22, Abbreviations, Spanish
Record 22, Synonyms, Spanish
- glúcido 2, record 22, Spanish, gl%C3%BAcido
correct, masculine noun
- carbohidrato 3, record 22, Spanish, carbohidrato
correct, masculine noun
- sacárido 2, record 22, Spanish, sac%C3%A1rido
correct, masculine noun
- azúcar 2, record 22, Spanish, az%C3%BAcar
correct, masculine noun, less frequent
Record 22, Textual support, Spanish
Record number: 22, Textual support number: 1 DEF
Compuesto de carbono, hidrógeno y oxígeno en el que la proporción de hidrógeno a oxígeno es la misma que en el agua. 4, record 22, Spanish, - hidrato%20de%20carbono
Record number: 22, Textual support number: 1 CONT
Los carbohidratos, o hidratos de carbono, son compuestos orgánicos constituidos por átomos de carbono, oxígeno e hidrógeno. También se les denomina azúcares, [...] o sacáridos. La fórmula básica para los carbohidratos es CH2O. Podemos distinguir tres clases de carbohidratos: Monosacáridos (sacárido que no puede hidrolizarse para obtener sacáridos más pequeños), disacáridos (dos moléculas de monosacáridos) y polisacáridos (tres o más moléculas de monosacáridos). 2, record 22, Spanish, - hidrato%20de%20carbono
Record number: 22, Textual support number: 2 CONT
La experimentación con animales ha puesto de manifiesto que ciertos aminoácidos estimulan la formación de células en la mucosa intestinal y que los hidratos de carbono aportan la energía que aquéllas necesitan. 5, record 22, Spanish, - hidrato%20de%20carbono
Record 23 - internal organization data 2011-07-11
Record 23, English
Record 23, Subject field(s)
- Genetics
- Chemistry
Record 23, Main entry term, English
- methylation
1, record 23, English, methylation
correct
Record 23, Abbreviations, English
Record 23, Synonyms, English
Record 23, Textual support, English
Record number: 23, Textual support number: 1 DEF
Chemical reaction adding a methyl group to a compound. 2, record 23, English, - methylation
Record 23, French
Record 23, Domaine(s)
- Génétique
- Chimie
Record 23, Main entry term, French
- méthylation
1, record 23, French, m%C3%A9thylation
correct, feminine noun
Record 23, Abbreviations, French
Record 23, Synonyms, French
Record 23, Textual support, French
Record number: 23, Textual support number: 1 DEF
Substitution, dans une molécule, d’un radical méthyle à un atome d’hydrogène. 2, record 23, French, - m%C3%A9thylation
Record 23, Spanish
Record 23, Campo(s) temático(s)
- Genética
- Química
Record 23, Main entry term, Spanish
- metilación
1, record 23, Spanish, metilaci%C3%B3n
feminine noun
Record 23, Abbreviations, Spanish
Record 23, Synonyms, Spanish
Record 23, Textual support, Spanish
Record 24 - internal organization data 2011-05-17
Record 24, English
Record 24, Subject field(s)
- Chemistry
Universal entry(ies) Record 24
Record 24, Main entry term, English
- oxonium ion
1, record 24, English, oxonium%20ion
correct
Record 24, Abbreviations, English
Record 24, Synonyms, English
- H3O+ ion 2, record 24, English, H3O%2B%20ion
correct, see observation
- hydrogen ion 3, record 24, English, hydrogen%20ion
avoid
- hydronium ion 1, record 24, English, hydronium%20ion
avoid
- hydroxonium ion 4, record 24, English, hydroxonium%20ion
avoid
Record 24, Textual support, English
Record number: 24, Textual support number: 1 DEF
An ion of the type R3O+, in which R indicates hydrogen or an organic group, especially the ion H3O+, which is formed when acids dissociate in water. 5, record 24, English, - oxonium%20ion
Record number: 24, Textual support number: 1 OBS
Most of the time, the hydronium ion, symbol H3O+, is called hydrogen ion, symbol H[plus], even if the notion described by this term (hydrogen ion) represents not an hydrogen ion but "a proton (hydrogen ion) combined with a molecule of water." 6, record 24, English, - oxonium%20ion
Record number: 24, Textual support number: 2 OBS
Chemical formula: H3O+ 7, record 24, English, - oxonium%20ion
Record 24, French
Record 24, Domaine(s)
- Chimie
Entrée(s) universelle(s) Record 24
Record 24, Main entry term, French
- ion oxonium
1, record 24, French, ion%20oxonium
correct, masculine noun
Record 24, Abbreviations, French
Record 24, Synonyms, French
- ion H3O+ 2, record 24, French, ion%20H3O%2B
correct, see observation, masculine noun
- ion hydronium 3, record 24, French, ion%20hydronium
avoid, masculine noun
- ion hydrogène hydraté 2, record 24, French, ion%20hydrog%C3%A8ne%20hydrat%C3%A9
avoid, masculine noun
Record 24, Textual support, French
Record number: 24, Textual support number: 1 CONT
L'ion hydrogène H[ plus], ou proton, est le noyau de l'atome d’hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. Il s’associe en effet à une molécule d’eau, qui joue le rôle de base(accepteur de protons), pour former l'ion hydronium H3O+, ou ion hydrogène hydraté [...]. L'eau peut jouer aussi le rôle d’acide(donneur de protons) [...] 4, record 24, French, - ion%20oxonium
Record number: 24, Textual support number: 1 OBS
L’ion hydronium, de formule H3O+, est presque toujours appelé ion hydrogène, symbole H[plus]; l’ion d’hydrogène, n’existant pas à l’état libre dans l’eau, s’associe à une molécule d’eau pour former l’ion hydronium; cet ion hydronium par commodité est appelé ion hydrogène. 5, record 24, French, - ion%20oxonium
Record number: 24, Textual support number: 2 OBS
Le proton en solution aqueuse peut donner lieu à plusieurs écritures : - H[exposant]+(aq); cette écriture conventionnelle, simple et cohérente avec celle utilisée pour les autres ions, facilite l’écriture de nombreuses équations chimiques. - H3O+ (l’IUPAC recommande l’appellation oxonium). L’écriture H3O+(aq) n’est pas nécessaire. 6, record 24, French, - ion%20oxonium
Record number: 24, Textual support number: 3 OBS
Formule chimique : H3O+ 7, record 24, French, - ion%20oxonium
Record 24, Spanish
Record 24, Campo(s) temático(s)
- Química
Entrada(s) universal(es) Record 24
Record 24, Main entry term, Spanish
- hidrogenión
1, record 24, Spanish, hidrogeni%C3%B3n
masculine noun
Record 24, Abbreviations, Spanish
Record 24, Synonyms, Spanish
- ión hidrógeno 1, record 24, Spanish, i%C3%B3n%20hidr%C3%B3geno
masculine noun
Record 24, Textual support, Spanish
Record number: 24, Textual support number: 1 OBS
Fórmula química: H3O+ 2, record 24, Spanish, - hidrogeni%C3%B3n
Record 25 - internal organization data 2011-04-14
Record 25, English
Record 25, Subject field(s)
- Analytical Chemistry
Record 25, Main entry term, English
- keto-enol equilibrium
1, record 25, English, keto%2Denol%20equilibrium
correct
Record 25, Abbreviations, English
Record 25, Synonyms, English
Record 25, Textual support, English
Record 25, French
Record 25, Domaine(s)
- Chimie analytique
Record 25, Main entry term, French
- équilibre céto-énolique
1, record 25, French, %20%C3%A9quilibre%20c%C3%A9to%2D%C3%A9nolique
correct, masculine noun
Record 25, Abbreviations, French
Record 25, Synonyms, French
Record 25, Textual support, French
Record number: 25, Textual support number: 1 CONT
Équilibre(ou tautomérie) céto-énolique. Les énols sont les formes tautomères des aldéhydes et des cétones énolisables. Plus énolisables(«transformables en énol»), c'est-à-dire possédant un atome d’hydrogène sur le carbone en alpha de la fonction carbonyle. Ces composés carbonylés sont en équilibre avec leur forme tautomère, leur énol. On appelle cet équilibre l'équilibre céto-énolique. 2, record 25, French, - %20%C3%A9quilibre%20c%C3%A9to%2D%C3%A9nolique
Record 25, Spanish
Record 25, Textual support, Spanish
Record 26 - internal organization data 2011-03-21
Record 26, English
Record 26, Subject field(s)
- Chemical Elements and Compounds
- Petrochemistry
Record 26, Main entry term, English
- alkyl group
1, record 26, English, alkyl%20group
correct
Record 26, Abbreviations, English
- R 2, record 26, English, R
correct, see observation
Record 26, Synonyms, English
Record 26, Textual support, English
Record number: 26, Textual support number: 1 DEF
A paraffinic hydrocarbon group which may be derived from an alkane by dropping one hydrogen from the formula. Examples are methyl, ... ethyl, ... propyl, ... isopropyl ... Such groups are often represented in formulas by the letter R and have the generic formula CnH2n+1. 3, record 26, English, - alkyl%20group
Record number: 26, Textual support number: 2 DEF
alkyl groups: Univalent groups derived from alkanes by removal of a hydrogen atom from any carbon atom -CnH2n+. 4, record 26, English, - alkyl%20group
Record number: 26, Textual support number: 1 OBS
The [alkyl] groups derived by removal of a hydrogen atom from a terminal carbon atom of unbranched alkanes form a subclass of normal alkyl (n-alkyl) groups H[CH2]n. The groups RCH2, RxCH (R [not equal to] H, and R3C (R [not equal to] H are primary, secondary and tertiary alkyl groups, respectively. 4, record 26, English, - alkyl%20group
Record number: 26, Textual support number: 2 OBS
n-alkyl: The letter "n" must be italicized. 5, record 26, English, - alkyl%20group
Record 26, Key term(s)
- alkyl groups
Record 26, French
Record 26, Domaine(s)
- Éléments et composés chimiques
- Chimie du pétrole
Record 26, Main entry term, French
- groupe alkyle
1, record 26, French, groupe%20alkyle
correct, masculine noun
Record 26, Abbreviations, French
- R 2, record 26, French, R
correct
Record 26, Synonyms, French
- groupe alcoyle 3, record 26, French, groupe%20alcoyle
avoid, masculine noun
Record 26, Textual support, French
Record number: 26, Textual support number: 1 DEF
Groupe monovalent dérivé des alcanes par enlèvement d’un atome d’hydrogène à l'un quelconque des atomes de carbone :-CnH2n+1. 4, record 26, French, - groupe%20alkyle
Record number: 26, Textual support number: 1 OBS
[Les groupes alkyles] qui dérivent des alcanes linéaires par enlèvement d’un atome d’hydrogène à un atome de carbone terminal constituent la sous-classe des alkyles normaux(n-alkyles) : H[ CH2]n-. Les groupes RCH2-, R2CH-(R[ non égal à] H) et R3C-(R[ non égal à] H) sont nommés respectivement groupes alkyles primaires, secondaires et tertiaires. 4, record 26, French, - groupe%20alkyle
Record number: 26, Textual support number: 2 OBS
Ne pas confondre avec le terme voisin «groupe alkylé» (en anglais : «alkylated group»), qui désigne les groupes qui renferment un groupe alkyle. 5, record 26, French, - groupe%20alkyle
Record 26, Key term(s)
- groupes alkyle
- groupes alcoyle
- alkyle
- alkyles
- alcoyle
- alcoyles
Record 26, Spanish
Record 26, Campo(s) temático(s)
- Elementos y compuestos químicos
- Petroquímica
Record 26, Main entry term, Spanish
- grupo alquilo
1, record 26, Spanish, grupo%20alquilo
correct, masculine noun
Record 26, Abbreviations, Spanish
Record 26, Synonyms, Spanish
Record 26, Textual support, Spanish
Record number: 26, Textual support number: 1 CONT
Se usa la designación de amina primaria secundaria o terciaria para referirnos al número de grupos alquilos que están unidos al nitrógeno. Así, si la amina tiene un grupo alquilo y dos hidrógenos se le conoce como primaria, si tiene dos alquilos y un hidrógeno, secundaria y con tres grupos alquilo sin hidrógeno, terciaria. 2, record 26, Spanish, - grupo%20alquilo
Record number: 26, Textual support number: 2 CONT
Los halogenuros de alquilo tienen la fórmula general RX, donde R representa un grupo alquilo o alquilo sustituido. 3, record 26, Spanish, - grupo%20alquilo
Record number: 26, Textual support number: 3 CONT
Bencenos sustituidos por grupos alquilo se nombran de dos formas diferentes dependiendo del tamaño del grupo alquilo. 4, record 26, Spanish, - grupo%20alquilo
Record 26, Key term(s)
- grupos alquilo
- grupos alquilos
- alquilo
- alquilos
Record 27 - internal organization data 2011-02-03
Record 27, English
Record 27, Subject field(s)
- Chemistry
- Climate Change
Universal entry(ies) Record 27
Record 27, Main entry term, English
- hydroxyl
1, record 27, English, hydroxyl
correct
Record 27, Abbreviations, English
Record 27, Synonyms, English
- hydridooxygen(·) 2, record 27, English, hydridooxygen%28%26%23183%3B%29
correct, see observation
- hydroxyl radical 3, record 27, English, hydroxyl%20radical
correct
- HO· radical 2, record 27, English, HO%26%23183%3B%20radical
correct, see observation
- oxidanyl 2, record 27, English, oxidanyl
former designation, avoid
- free hydroxyl radical 4, record 27, English, free%20hydroxyl%20radical
former designation, avoid, see observation
- OH· radical 5, record 27, English, OH%26%23183%3B%20radical
former designation, avoid
- OH· hydroxyl radical 4, record 27, English, OH%26%23183%3B%20hydroxyl%20radical
former designation, avoid
Record 27, Textual support, English
Record number: 27, Textual support number: 1 OBS
hydroxyls: Group composed of one oxygen atom, one hydrogen atom, and one unpaired electron, HO·. 2, record 27, English, - hydroxyl
Record number: 27, Textual support number: 2 OBS
Hydroxyl radicals (HO·) are important sinks for ozone; they may be taken up by methane and carbon monoxide with which they also react. 6, record 27, English, - hydroxyl
Record number: 27, Textual support number: 3 OBS
hydridooxygen(·): pronounced "hydridooxygen dot"; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 2, record 27, English, - hydroxyl
Record number: 27, Textual support number: 4 OBS
HO· radical: descriptive name. 2, record 27, English, - hydroxyl
Record number: 27, Textual support number: 5 OBS
free radical: obsolete term; the term "radical" is recommended instead. 2, record 27, English, - hydroxyl
Record 27, French
Record 27, Domaine(s)
- Chimie
- Changements climatiques
Entrée(s) universelle(s) Record 27
Record 27, Main entry term, French
- hydroxyle
1, record 27, French, hydroxyle
correct, masculine noun
Record 27, Abbreviations, French
Record 27, Synonyms, French
- hydrurooxygène(·) 2, record 27, French, hydrurooxyg%C3%A8ne%28%26%23183%3B%29
correct, see observation, masculine noun
- radical hydroxyle 3, record 27, French, radical%20hydroxyle
correct, masculine noun
- radical HO· 2, record 27, French, radical%20HO%26%23183%3B
correct, see observation, masculine noun
- oxidanyle 2, record 27, French, oxidanyle
former designation, avoid, masculine noun
- oxhydryle 4, record 27, French, oxhydryle
former designation, avoid, masculine noun
- radical libre hydroxyle 5, record 27, French, radical%20libre%20hydroxyle
former designation, avoid, masculine noun
- radical OH· 6, record 27, French, radical%20OH%26%23183%3B
former designation, avoid, masculine noun
- radical libre hydrogéné 5, record 27, French, radical%20libre%20hydrog%C3%A9n%C3%A9
former designation, avoid, masculine noun
- radical hydroxyle OH· 5, record 27, French, radical%20hydroxyle%20OH%26%23183%3B
former designation, avoid, masculine noun
Record 27, Textual support, French
Record number: 27, Textual support number: 1 OBS
hydroxyles : Groupe composé d’un atome d’oxygène, d’un atome d’hydrogène et d’un électron non apparié, HO· ou HO(·). 2, record 27, French, - hydroxyle
Record number: 27, Textual support number: 1 CONT
Mis en présence de l’acide chlorhydrique, les radicaux hydroxyles libèrent du chlore atomique qui détruit l’ozone selon la réaction HO· + HC1 = H20 + C1. 7, record 27, French, - hydroxyle
Record number: 27, Textual support number: 2 OBS
La présence du radical hydroxyle est fondamentale dans le phénomène d’effet de serre. Ce radical constitue un puits très important pour le monoxyde de carbone et le méthane. Il nettoie littéralement l’atmosphère de plusieurs gaz à effet radiatif. Sa disparition aurait pour conséquence des augmentations marquées de la concentration des gaz à effet de serre. 8, record 27, French, - hydroxyle
Record number: 27, Textual support number: 3 OBS
hydrurooxygène(·) : prononcé «hydrurooxygène point»; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 2, record 27, French, - hydroxyle
Record number: 27, Textual support number: 4 OBS
radical HO· : nom descriptif. Les points sont en exposant HO· lorsque le nom du radical se termine par «yle», par exemple «hydroxyle». Ce sont des points centrés entre parenthèses après les noms qui n’ont pas le suffixe «-yle». Par exemple : hydruroxygène(·) ou HO(·). 2, record 27, French, - hydroxyle
Record number: 27, Textual support number: 5 OBS
radical libre : Ce nom est obsolète; il est remplacé par «radical», sans autre mention. 2, record 27, French, - hydroxyle
Record 27, Spanish
Record 27, Campo(s) temático(s)
- Química
- Cambio climático
Entrada(s) universal(es) Record 27
Record 27, Main entry term, Spanish
- hidroxilo
1, record 27, Spanish, hidroxilo
masculine noun
Record 27, Abbreviations, Spanish
Record 27, Synonyms, Spanish
Record 27, Textual support, Spanish
Record 28 - internal organization data 2011-01-20
Record 28, English
Record 28, Subject field(s)
- Chemical Elements and Compounds
Universal entry(ies) Record 28
Record 28, Main entry term, English
- primary amine
1, record 28, English, primary%20amine
correct
Record 28, Abbreviations, English
Record 28, Synonyms, English
Record 28, Textual support, English
Record number: 28, Textual support number: 1 CONT
Amines are classified according to the number of hydrogens of ammonia which are replaced by radicals. Replacement of one hydrogen results in a primary amine (RNH) .... 1, record 28, English, - primary%20amine
Record number: 28, Textual support number: 1 OBS
Chemical formula: RNH2 2, record 28, English, - primary%20amine
Record 28, French
Record 28, Domaine(s)
- Éléments et composés chimiques
Entrée(s) universelle(s) Record 28
Record 28, Main entry term, French
- amine primaire
1, record 28, French, amine%20primaire
correct, feminine noun
Record 28, Abbreviations, French
Record 28, Synonyms, French
Record 28, Textual support, French
Record number: 28, Textual support number: 1 CONT
On peut considérer les amines comme des dérivés de l'ammoniac [...] On les classe selon le nombre d’atomes d’hydrogène ainsi remplacés par d’autres radicaux : la substitution d’un atome d’hydrogène aboutit aux amines primaires [...] 1, record 28, French, - amine%20primaire
Record number: 28, Textual support number: 1 OBS
formule chimique : RNH2 2, record 28, French, - amine%20primaire
Record 28, Spanish
Record 28, Campo(s) temático(s)
- Elementos y compuestos químicos
Entrada(s) universal(es) Record 28
Record 28, Main entry term, Spanish
- amina primaria
1, record 28, Spanish, amina%20primaria
feminine noun
Record 28, Abbreviations, Spanish
Record 28, Synonyms, Spanish
Record 28, Textual support, Spanish
Record number: 28, Textual support number: 1 OBS
Fórmula química: RNH2 2, record 28, Spanish, - amina%20primaria
Record 29 - internal organization data 2011-01-13
Record 29, English
Record 29, Subject field(s)
- Chemistry
- Climate Change
Universal entry(ies) Record 29
Record 29, Main entry term, English
- hydroxide
1, record 29, English, hydroxide
correct, see observation
Record 29, Abbreviations, English
Record 29, Synonyms, English
- hydroxide ion 2, record 29, English, hydroxide%20ion
correct
- hydroxyl ion 3, record 29, English, hydroxyl%20ion
former designation, avoid
- OH- ion 4, record 29, English, OH%2D%20ion
former designation, avoid, see observation
- hydroxylion 5, record 29, English, hydroxylion
former designation, avoid
Record 29, Textual support, English
Record number: 29, Textual support number: 1 DEF
hydroxides: Negatively charged group composed of one oxygen atom and one hydrogen atom. 6, record 29, English, - hydroxide
Record number: 29, Textual support number: 1 OBS
hydroxide: form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 6, record 29, English, - hydroxide
Record number: 29, Textual support number: 2 OBS
Chemical formula: HO- or OH- 6, record 29, English, - hydroxide
Record 29, French
Record 29, Domaine(s)
- Chimie
- Changements climatiques
Entrée(s) universelle(s) Record 29
Record 29, Main entry term, French
- hydroxyde
1, record 29, French, hydroxyde
correct, see observation, masculine noun
Record 29, Abbreviations, French
Record 29, Synonyms, French
- ion hydroxyde 2, record 29, French, ion%20hydroxyde
correct, masculine noun
- ion hydroxyle 3, record 29, French, ion%20hydroxyle
former designation, avoid, masculine noun
- ion OH- 4, record 29, French, ion%20OH%2D
former designation, avoid, see observation, masculine noun
- ion oxhydrile 5, record 29, French, ion%20oxhydrile
former designation, avoid, masculine noun
- anion hydroxyde 2, record 29, French, anion%20hydroxyde
former designation, avoid, masculine noun
- anion OH- 6, record 29, French, anion%20OH%2D
former designation, avoid, masculine noun
Record 29, Textual support, French
Record number: 29, Textual support number: 1 DEF
hydroxydes : Groupe, chargé négativement, composé d’un atome d’oxygène et d’un atome d’hydrogène. 1, record 29, French, - hydroxyde
Record number: 29, Textual support number: 1 OBS
hydroxyde : forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 29, French, - hydroxyde
Record number: 29, Textual support number: 2 OBS
pluriel : des ions hydroxyde. 7, record 29, French, - hydroxyde
Record number: 29, Textual support number: 3 OBS
Formule chimique : HO- ou OH- 1, record 29, French, - hydroxyde
Record 29, Spanish
Record 29, Campo(s) temático(s)
- Química
- Cambio climático
Entrada(s) universal(es) Record 29
Record 29, Main entry term, Spanish
- hidroxilión
1, record 29, Spanish, hidroxili%C3%B3n
masculine noun
Record 29, Abbreviations, Spanish
Record 29, Synonyms, Spanish
- ión hidroxilo 1, record 29, Spanish, i%C3%B3n%20hidroxilo
masculine noun
Record 29, Textual support, Spanish
Record number: 29, Textual support number: 1 OBS
Fórmula química: HO- or OH- 2, record 29, Spanish, - hidroxili%C3%B3n
Record 30 - internal organization data 2011-01-10
Record 30, English
Record 30, Subject field(s)
- Chemistry
Record 30, Main entry term, English
- carboxyl group
1, record 30, English, carboxyl%20group
correct
Record 30, Abbreviations, English
Record 30, Synonyms, English
- carboxyl 2, record 30, English, carboxyl
correct
Record 30, Textual support, English
Record number: 30, Textual support number: 1 DEF
[A] functional group of carboxylic acids. 2, record 30, English, - carboxyl%20group
Record number: 30, Textual support number: 1 CONT
All ... amino acids ... except proline have as common denominators a free carboxyl group and a free unsubstituted amino group on the [alpha] carbon atom. They differ from each other in the structure of their distinctive side chains, called the R groups.... The characteristic organic reactions of amino acids are those of their functional groups, i.e., the carboxyl groups, the [alpha] amino groups, and the functional groups present in the different side chains.... The carboxyl groups of all amino acids undergo well-known organic reactions leading to the formation of amides, esters, and acid halides.... Esterification of amino acids with ethanol or benzyl alcohol is often used as a means of protecting the carboxyl group of amino acids in the chemical synthesis of peptides. 3, record 30, English, - carboxyl%20group
Record 30, French
Record 30, Domaine(s)
- Chimie
Record 30, Main entry term, French
- carboxyle
1, record 30, French, carboxyle
correct, masculine noun
Record 30, Abbreviations, French
Record 30, Synonyms, French
- radical carboxyle 2, record 30, French, radical%20carboxyle
correct, masculine noun
- groupe carboxyle 3, record 30, French, groupe%20carboxyle
correct, masculine noun
Record 30, Textual support, French
Record number: 30, Textual support number: 1 DEF
Radical fonctionnel monovalent -COOH des acides organiques, dits acides carboxyliques, se composant des groupes carbonyle CO et hydroxyle -OH, qui s’influencent réciproquement jusqu’à perdre leur individualité. 2, record 30, French, - carboxyle
Record number: 30, Textual support number: 1 CONT
La structure des acides aminés conditionne le repliement des protéines. Dans un acide aminé isolé, quatre groupes chimiques sont liés à un atome de carbone central, le carbone alpha; ces groupes sont un groupe amine NH2, un groupe carboxyle(COOH), un atome d’hydrogène et une chaîne latérale(notée R). Les 20 acides aminés ne diffèrent que par leur chaîne latérale. Dans une protéine, le groupe aminé d’un acide aminé est lié au groupe carboxyle de l'acide aminé suivant(avec élimination d’une molécule d’eau), formant ainsi une liaison peptidique. La mise en commun des électrons(leur délocalisation) entre les atomes d’azote, de carbone et d’oxygène empêche les protéines de tourner librement autour des liaisons peptidiques; chaque unité peptidique définit un plan rigide et les protéines ne peuvent se replier que par rotation autour des liaisons avec le carbone alpha. 4, record 30, French, - carboxyle
Record 30, Spanish
Record 30, Campo(s) temático(s)
- Química
Record 30, Main entry term, Spanish
- carboxilo
1, record 30, Spanish, carboxilo
correct, masculine noun
Record 30, Abbreviations, Spanish
Record 30, Synonyms, Spanish
- grupo carboxilo 2, record 30, Spanish, grupo%20carboxilo
masculine noun
Record 30, Textual support, Spanish
Record 31 - internal organization data 2010-12-14
Record 31, English
Record 31, Subject field(s)
- Chemical Elements and Compounds
Record 31, Main entry term, English
- chlorofluoromethane
1, record 31, English, chlorofluoromethane
correct
Record 31, Abbreviations, English
- CFM 2, record 31, English, CFM
correct
Record 31, Synonyms, English
Record 31, Textual support, English
Record number: 31, Textual support number: 1 CONT
The increase in the manufacture and release into the atmosphere of chlorofluoromethanes, especially CFC13 (F-11) and CF2C12 (F-12) to result in a rapidly increasing amount of C10x in the stratosphere. 3, record 31, English, - chlorofluoromethane
Record 31, French
Record 31, Domaine(s)
- Éléments et composés chimiques
Record 31, Main entry term, French
- chlorofluorométhane
1, record 31, French, chlorofluorom%C3%A9thane
correct, masculine noun
Record 31, Abbreviations, French
- CFM 2, record 31, French, CFM
correct, masculine noun
Record 31, Synonyms, French
- méthane chlorofluoré 3, record 31, French, m%C3%A9thane%20chlorofluor%C3%A9
correct, masculine noun, less frequent
Record 31, Textual support, French
Record number: 31, Textual support number: 1 DEF
Chlorofluorocarbone composé d’un seul atome de carbone ainsi que de chlore et de fluor, ces deux derniers remplaçant partiellement ou entièrement les atomes d’hydrogène. 4, record 31, French, - chlorofluorom%C3%A9thane
Record number: 31, Textual support number: 1 OBS
Les chlorofluorométhanes sont pour la plupart commercialisés sous la marque déposée Fréon par Dupont de Nemours. 4, record 31, French, - chlorofluorom%C3%A9thane
Record number: 31, Textual support number: 2 OBS
Dans la pratique, les CFM comprennent souvent aussi les composés du brome et de l’iode. En réalité, la famille de produits chimiques composée d’un atome de carbone et de tous les halogènes possible devrait être appelée «halométhane». 5, record 31, French, - chlorofluorom%C3%A9thane
Record number: 31, Textual support number: 1 PHR
Cycle de chlorofluorométhane. 6, record 31, French, - chlorofluorom%C3%A9thane
Record 31, Spanish
Record 31, Campo(s) temático(s)
- Elementos y compuestos químicos
Record 31, Main entry term, Spanish
- clorofluorometano
1, record 31, Spanish, clorofluorometano
correct, masculine noun
Record 31, Abbreviations, Spanish
- CFM 1, record 31, Spanish, CFM
correct, masculine noun
Record 31, Synonyms, Spanish
Record 31, Textual support, Spanish
Record number: 31, Textual support number: 1 DEF
Compuesto de carbono que contiene átomos de flúor y/o cloro. 1, record 31, Spanish, - clorofluorometano
Record number: 31, Textual support number: 1 OBS
No es venenoso. Es inerte a temperatura ambiente y licuable bajo presión. Su biodegradación es muy lenta y se va acumulando en la estratosfera. 1, record 31, Spanish, - clorofluorometano
Record 32 - internal organization data 2010-06-22
Record 32, English
Record 32, Subject field(s)
- Chemistry
Record 32, Main entry term, English
- NIH shift
1, record 32, English, NIH%20shift
correct
Record 32, Abbreviations, English
Record 32, Synonyms, English
- NIH-shift 2, record 32, English, NIH%2Dshift
Record 32, Textual support, English
Record number: 32, Textual support number: 1 DEF
The intramolecular hydrogen migration accompanying the molecular rearrangement of arene oxides to cyclohexadienones, thought to be the central step in the enzymic hydroxylation of aromatic rings. 1, record 32, English, - NIH%20shift
Record number: 32, Textual support number: 1 OBS
This phenomenon was extensively studied at the National Institutes of Health and was therefore named "NIH-shift." 2, record 32, English, - NIH%20shift
Record 32, French
Record 32, Domaine(s)
- Chimie
Record 32, Main entry term, French
- migration NIH
1, record 32, French, migration%20NIH
correct, feminine noun
Record 32, Abbreviations, French
Record 32, Synonyms, French
Record 32, Textual support, French
Record number: 32, Textual support number: 1 DEF
Migration intramoléculaire d’un atome d’hydrogène au cours du réarrangement moléculaire des oxydes d’arène en cyclohexadiénones. 1, record 32, French, - migration%20NIH
Record number: 32, Textual support number: 1 OBS
On considère que c’est l’étape clé de l’hydroxylation enzymatique des cycles aromatiques [...] 1, record 32, French, - migration%20NIH
Record number: 32, Textual support number: 2 OBS
NIH pour National Institute of Health. 2, record 32, French, - migration%20NIH
Record 32, Spanish
Record 32, Textual support, Spanish
Record 33 - internal organization data 2010-06-04
Record 33, English
Record 33, Subject field(s)
- Chemistry
Universal entry(ies) Record 33
Record 33, Main entry term, English
- hydrogen ion
1, record 33, English, hydrogen%20ion
correct
Record 33, Abbreviations, English
Record 33, Synonyms, English
- H+ ion 2, record 33, English, H%2B%20ion
correct
Record 33, Textual support, English
Record number: 33, Textual support number: 1 DEF
The positively charged ion in all acids. 3, record 33, English, - hydrogen%20ion
Record number: 33, Textual support number: 1 OBS
For simplicity, the hydrogen ion is usually designated by the symbol H+. 4, record 33, English, - hydrogen%20ion
Record number: 33, Textual support number: 2 OBS
Not to be confused with hydronium ion (H3O+) which is the form taken by H+ when combined with water; it must be remembered that, on the other hand, hydronium ion is usually called, for simplicity sake, hydrogen ion. 5, record 33, English, - hydrogen%20ion
Record 33, French
Record 33, Domaine(s)
- Chimie
Entrée(s) universelle(s) Record 33
Record 33, Main entry term, French
- ion hydrogène
1, record 33, French, ion%20hydrog%C3%A8ne
correct, masculine noun
Record 33, Abbreviations, French
Record 33, Synonyms, French
- ion H+ 2, record 33, French, ion%20H%2B
correct, masculine noun
- ion d’hydrogène 3, record 33, French, ion%20d%26rsquo%3Bhydrog%C3%A8ne
correct, masculine noun
- ion positif hydrogène 2, record 33, French, ion%20positif%20hydrog%C3%A8ne
correct, masculine noun
Record 33, Textual support, French
Record number: 33, Textual support number: 1 CONT
L'ion hydrogène H+, ou proton, est le noyau de l'atome d’hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. Il s’associe en effet à une molécule d’eau, qui joue le rôle de base(accepteur de protons), pour former l'ion hydronium H3O+, ou ion hydrogène hydrate [...]. L'eau peut jouer le rôle d’acide(donneur de protons) [...] 2, record 33, French, - ion%20hydrog%C3%A8ne
Record number: 33, Textual support number: 1 OBS
pluriel : des ions hydrogène. 4, record 33, French, - ion%20hydrog%C3%A8ne
Record 33, Spanish
Record 33, Campo(s) temático(s)
- Química
Entrada(s) universal(es) Record 33
Record 33, Main entry term, Spanish
- ión hidrógeno
1, record 33, Spanish, i%C3%B3n%20hidr%C3%B3geno
correct, masculine noun
Record 33, Abbreviations, Spanish
Record 33, Synonyms, Spanish
Record 33, Textual support, Spanish
Record number: 33, Textual support number: 1 DEF
Ión de carga positiva [...] 2, record 33, Spanish, - i%C3%B3n%20hidr%C3%B3geno
Record 34 - internal organization data 2010-05-06
Record 34, English
Record 34, Subject field(s)
- Metrology and Units of Measure
- Atomic Physics
- Nuclear Physics
Record 34, Main entry term, English
- gigaelectronvolt
1, record 34, English, gigaelectronvolt
correct
Record 34, Abbreviations, English
- GeV 2, record 34, English, GeV
correct, see observation
Record 34, Synonyms, English
- gigaelectron volt 3, record 34, English, gigaelectron%20volt
correct
- GeV 2, record 34, English, GeV
correct, see observation
- Gev 3, record 34, English, Gev
avoid, see observation
- GeV 2, record 34, English, GeV
- giga-electron-volt 4, record 34, English, giga%2Delectron%2Dvolt
correct
- GeV 2, record 34, English, GeV
correct, see observation
- GeV 2, record 34, English, GeV
- giga electron volt 5, record 34, English, giga%20electron%20volt
- GeV 2, record 34, English, GeV
correct, see observation
- GeV 2, record 34, English, GeV
Record 34, Textual support, English
Record number: 34, Textual support number: 1 DEF
A unit of energy, used primarily in high energy physics, equal to 10 [to the 9th power] electron volts or (1.60210 + or - 0.00007) x 10 [to the -10th power] joules. 1, record 34, English, - gigaelectronvolt
Record number: 34, Textual support number: 1 OBS
GeV is the symbol for this unit, however the symbol Gev (with the lower case "v") does not obey the convention on the formation of SI symbols 6, record 34, English, - gigaelectronvolt
Record 34, French
Record 34, Domaine(s)
- Unités de mesure et métrologie
- Physique atomique
- Physique nucléaire
Record 34, Main entry term, French
- gigaélectronvolt
1, record 34, French, giga%C3%A9lectronvolt
correct, masculine noun
Record 34, Abbreviations, French
- GeV 1, record 34, French, GeV
correct, masculine noun
Record 34, Synonyms, French
Record 34, Textual support, French
Record number: 34, Textual support number: 1 CONT
En physique des particules, on utilise le MeV ainsi que le GeV (gigaélectronvolt = 10 [à la neuvième puissance] eV). 1, record 34, French, - giga%C3%A9lectronvolt
Record number: 34, Textual support number: 1 OBS
électronvolt [...] Unité d’énergie(symb. eV) utilisée principalement en physique atomique et moléculaire, égale à l'énergie acquise par un électron lorsqu'il est accéléré par unE différence de potentiel de 1 volt.(Par ex., l'énergie d’ionisation de l'atome d’hydrogène est de 13, 6 eV.) 1, record 34, French, - giga%C3%A9lectronvolt
Record number: 34, Textual support number: 2 OBS
En physique nucléaire, on utilise couramment le kiloélectronvolt (keV), unité [1000] fois plus grande, et le mégaélectronvolt (MeV), unité [1 000 000) fois plus grande, mieux adaptés aux énergies propres à ce domaine. 1, record 34, French, - giga%C3%A9lectronvolt
Record 34, Spanish
Record 34, Campo(s) temático(s)
- Metrología y unidades de medida
- Física atómica
- Física nuclear
Record 34, Main entry term, Spanish
- gigaelectronvoltio
1, record 34, Spanish, gigaelectronvoltio
correct, masculine noun
Record 34, Abbreviations, Spanish
- GeV 1, record 34, Spanish, GeV
correct, masculine noun
Record 34, Synonyms, Spanish
Record 34, Textual support, Spanish
Record number: 34, Textual support number: 1 DEF
Unidad de energía equivalente a 1,000,000,000 electronvoltios. 2, record 34, Spanish, - gigaelectronvoltio
Record 35 - internal organization data 2009-08-03
Record 35, English
Record 35, Subject field(s)
- Lasers and Masers
Record 35, Main entry term, English
- passive hydrogen mazer
1, record 35, English, passive%20hydrogen%20mazer
correct
Record 35, Abbreviations, English
- PHM 2, record 35, English, PHM
correct
Record 35, Synonyms, English
Record 35, Textual support, English
Record number: 35, Textual support number: 1 CONT
The PHM is an atomic clock with outstanding stability for averaging times from 1 to 100,000 seconds, to be used in precise positioning, time keeping and other on-boards applications. It is designed to perform in space environment for not less than 12 years. The operating principle exploits the stimulated energy emission occurring during the hyperfine transition of the atomic hydrogen in a miniaturised microwave cavity. The ultra stable RF [Radio Frequency] generated signal, at the frequency of 1420.4057517 .. MHz [megahertz], is used as a reference in a frequency synthesiser to generate the 10 MHz standard reference frequency. 3, record 35, English, - passive%20hydrogen%20mazer
Record number: 35, Textual support number: 1 OBS
The PHM is the most stable spaceborne atomic clock ever developed for an operational programme. The PHM is the master clock for the ESA/EU [European Space Agency/Europe] Galileo Navigation System. 3, record 35, English, - passive%20hydrogen%20mazer
Record 35, Key term(s)
- passive hydrogen maser
Record 35, French
Record 35, Domaine(s)
- Masers et lasers
Record 35, Main entry term, French
- maser à hydrogène passif
1, record 35, French, maser%20%C3%A0%20hydrog%C3%A8ne%20passif
correct, masculine noun
Record 35, Abbreviations, French
- PHM 2, record 35, French, PHM
correct, masculine noun
Record 35, Synonyms, French
Record 35, Textual support, French
Record number: 35, Textual support number: 1 CONT
GIOVE-B transporte à son bord deux horloges atomiques au rubidium et un maser à hydrogène passif [PHM], l’horloge atomique la plus précise au monde, toutes trois conçues et réalisées par la société neuchâteloise SpectraTime, filiale du groupe Orolia. Ces horloges constituent la base de temps des satellites, et donc l’élément clé de ce premier système de navigation européen. Elles permettent d’atteindre une stabilité de moins de 10 milliardièmes de secondes par jour. « C’est la première fois qu’un tel maser à hydrogène passif (PHM) est envoyé dans l’espace, et c’est lui qui donnera à Galileo ses performances uniques au monde. Pour donner un point de comparaison, nos horloges sont 10 millions de fois plus précises qu’une montre à quartz » [...] SpectraTime. 2, record 35, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record number: 35, Textual support number: 1 OBS
Le second satellite expérimental du système européen de positionnement par satellite Galileo, destiné notamment à tester l’horloge atomique la plus précise jamais placée en orbite à ce jour, a été lancé avec succès le 27 avril 2008 dernier du centre spatial de Baïkonour. Ce satellite de test, baptisé GIOVE-B (Galileo In-Orbit Validation Element) [...] Galileo, premier système européen de navigation et de positionnement par satellite [...] sera compatible avec les deux autres systèmes de navigation par satellite couvrant l’ensemble du globe : le système américain GPS et le système russe Glonass. 2, record 35, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record number: 35, Textual support number: 2 OBS
Le maser("Microwave Amplification by Stimulated Emission of Radiation") à hydrogène est une horloge atomique extrêmement stable basée sur l'atome d’hydrogène. Il a été inventé par Kleppner et Ramsey en 1960 à l'université de Harvard. Le principe de fonctionnement est semblable à celui du LASER sauf que la radiation émise est une radiation micro-onde et non pas optique. Le maser à hydrogène est utilisé principalement en radioastronomie et en géodésie comme horloge pour la synchronisation de radiotélescopes utilisant la technique du VLBI(Very Long Base Interferometry). Il est utilisé également pour la poursuite des sondes planétaires(Deep Space Tracking). Dans le futur, il pourrait être utilisé dans les systèmes de navigation par satellite de type GPS à cause de sa très grande stabilité(cf l'avenir du temps atomique). 3, record 35, French, - maser%20%C3%A0%20hydrog%C3%A8ne%20passif
Record 35, Spanish
Record 35, Textual support, Spanish
Record 36 - external organization data 2007-11-08
Record 36, English
Record 36, Subject field(s)
- Atomic Physics
- Compartment - Canadian Nuclear Safety Commission
Record 36, Main entry term, English
- neutron shield 1, record 36, English, neutron%20shield
Record 36, Abbreviations, English
Record 36, Synonyms, English
Record 36, Textual support, English
Record number: 36, Textual support number: 1 CONT
The hydrogen atom is capable of causing the greatest reduction in energy, so hydrogenous material such as water and wax make the best neutron shields. 1, record 36, English, - neutron%20shield
Record 36, French
Record 36, Domaine(s)
- Physique atomique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 36, Main entry term, French
- écran contre les neutrons
1, record 36, French, %C3%A9cran%20contre%20les%20neutrons
masculine noun
Record 36, Abbreviations, French
Record 36, Synonyms, French
Record 36, Textual support, French
Record number: 36, Textual support number: 1 CONT
L'atome d’hydrogène est capable d’absorber la plus grande quantité d’énergie, alors les matières qui contiennent de l'hydrogène, comme l'eau ou la cire, constituent les meilleurs écrans contre les neutrons. 1, record 36, French, - %C3%A9cran%20contre%20les%20neutrons
Record 36, Spanish
Record 36, Textual support, Spanish
Record 37 - internal organization data 2006-06-07
Record 37, English
Record 37, Subject field(s)
- Medication
- Viral Diseases
Record 37, Main entry term, English
- aciclovir
1, record 37, English, aciclovir
correct
Record 37, Abbreviations, English
Record 37, Synonyms, English
- acyclovir 1, record 37, English, acyclovir
correct
- Zovirax 1, record 37, English, Zovirax
trademark
Record 37, Textual support, English
Record number: 37, Textual support number: 1 OBS
A guanosine analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes. 1, record 37, English, - aciclovir
Record 37, French
Record 37, Domaine(s)
- Médicaments
- Maladies virales
Record 37, Main entry term, French
- aciclovir
1, record 37, French, aciclovir
correct, masculine noun
Record 37, Abbreviations, French
Record 37, Synonyms, French
- acyclovir 1, record 37, French, acyclovir
correct, masculine noun
- Zovirax 1, record 37, French, Zovirax
trademark
Record 37, Textual support, French
Record number: 37, Textual support number: 1 CONT
Les analogues des bases puriques et pyrimidiques actifs contre les virus à DNA sont l'aciclovir, le valaciclovir, le famciclovir, l'idoxuridine, la trifluridine, la vidarabine, le ganciclovir et le cidofovir. Ils sont utilisés dans le traitement des infections à virus de la famille Herpes viridae. Il s’agit de l'herpes simplex, de l'herpes zoster(zona) et des cytomégalovirus. L'aciclovir, qui s’écrit parfois acyclovir, est un analogue de la guanine substitué en position 9 par remplacement d’un atome d’hydrogène par une chaîne à fonction alcool. 1, record 37, French, - aciclovir
Record 37, Spanish
Record 37, Campo(s) temático(s)
- Medicamentos
- Enfermedades víricas
Record 37, Main entry term, Spanish
- aciclovir
1, record 37, Spanish, aciclovir
correct, masculine noun
Record 37, Abbreviations, Spanish
Record 37, Synonyms, Spanish
Record 37, Textual support, Spanish
Record 38 - internal organization data 2006-05-24
Record 38, English
Record 38, Subject field(s)
- Medication
Record 38, Main entry term, English
- zalcitabine
1, record 38, English, zalcitabine
correct
Record 38, Abbreviations, English
Record 38, Synonyms, English
- 2',3'-dideoxycytidine 1, record 38, English, 2%27%2C3%27%2Ddideoxycytidine
former designation
- ddC 1, record 38, English, ddC
former designation
- HIVID 1, record 38, English, HIVID
trademark, see observation
Record 38, Textual support, English
Record number: 38, Textual support number: 1 OBS
HIVID is the Hoffmann-La Roche brand of zalcitabine [formerly called 2',3'-dideoxycytidine (ddC)], a synthetic pyrimidine nucleoside analogue active against the human immunodeficiency virus (HIV). HIVID is available as film-coated tablets for oral administration in strengths of 0.375 mg and 0.750 mg. 1, record 38, English, - zalcitabine
Record 38, French
Record 38, Domaine(s)
- Médicaments
Record 38, Main entry term, French
- zalcitabine
1, record 38, French, zalcitabine
correct, feminine noun
Record 38, Abbreviations, French
Record 38, Synonyms, French
- didésoxycytidine 2, record 38, French, did%C3%A9soxycytidine
former designation, feminine noun
- ddC 2, record 38, French, ddC
former designation, feminine noun
- ddC 2, record 38, French, ddC
- Hivid 1, record 38, French, Hivid
trademark
Record 38, Textual support, French
Record number: 38, Textual support number: 1 OBS
La zalcitabine est un analogue de synthèse d’un nucléoside naturel, la 2’-désoxycytidine, dont le groupement hydroxyde en position 3’ a été remplacé par un atome d’hydrogène. Dans la cellule, la zalcitabine est convertie par un système enzymatique en son métabolite actif, le didésoxycytidine-5’-triphosphate(ddCTP), qui remplace le substrat naturel, le désoxycytidine-triphosphate(dCTP), de la transcriptase inverse du VIH et qui inhibe la réplication in vitro du VIH-1 en inhibant la synthèse de l'ADN viral. 2, record 38, French, - zalcitabine
Record number: 38, Textual support number: 2 OBS
Zalcitabine. (anciennement appelée didésoxycytidine (ddC)). 2, record 38, French, - zalcitabine
Record 38, Spanish
Record 38, Campo(s) temático(s)
- Medicamentos
Record 38, Main entry term, Spanish
- dideoxicitidina
1, record 38, Spanish, dideoxicitidina
feminine noun
Record 38, Abbreviations, Spanish
- ddC 1, record 38, Spanish, ddC
feminine noun
Record 38, Synonyms, Spanish
- zalcitabina 1, record 38, Spanish, zalcitabina
feminine noun
- Hivid 1, record 38, Spanish, Hivid
masculine noun
Record 38, Textual support, Spanish
Record number: 38, Textual support number: 1 OBS
Principio activo del ddC, cuyo nombre comercial es Hivid. 1, record 38, Spanish, - dideoxicitidina
Record 39 - internal organization data 2006-03-30
Record 39, English
Record 39, Subject field(s)
- Chemical Elements and Compounds
- Biochemistry
- Medication
- Cancers and Oncology
Record 39, Main entry term, English
- 5-fluorouracil
1, record 39, English, 5%2Dfluorouracil
correct
Record 39, Abbreviations, English
- 5-FU 1, record 39, English, 5%2DFU
correct
Record 39, Synonyms, English
- fluorouracil 1, record 39, English, fluorouracil
- Efudix 1, record 39, English, Efudix
trademark
Record 39, Textual support, English
Record number: 39, Textual support number: 1 CONT
5-fluorouracil is an approved anti-cancer drug that works by preventing normal cell division. In its intravenous formulation it is used to treat a number of tumours including breast cancer and cancer of the colon. It also comes as a cream which can be used to treat cervical, anal or genital neoplasms caused by human papilloma virus (HPV). ... 5-fluorouracil is also known as fluorouracil, or the abbreviation 5-FU. It is available in a generic formulation and is also manufactured by Roche under the tradename Efudix. 1, record 39, English, - 5%2Dfluorouracil
Record 39, Key term(s)
- 5 FU
- 5FU
Record 39, French
Record 39, Domaine(s)
- Éléments et composés chimiques
- Biochimie
- Médicaments
- Cancers et oncologie
Record 39, Main entry term, French
- 5-fluorouracile
1, record 39, French, 5%2Dfluorouracile
correct, masculine noun
Record 39, Abbreviations, French
- 5FU 1, record 39, French, 5FU
correct, masculine noun
Record 39, Synonyms, French
- fluorouracile 1, record 39, French, fluorouracile
masculine noun
Record 39, Textual support, French
Record number: 39, Textual support number: 1 CONT
[...] le fluorouracile est un antimétabolite très utilisé en chimiothérapie anticancéreuse. Il a été développé à partir de l'uracile, base azotée qui entre dans la composition de l'ADN. Un atome de fluor remplace un atome d’hydrogène en position 5, d’où le nom de 5-fluorouracile ou encore 5FU. Le fluorouracile est un antimétabolite qui «mime» l'uracile, précurseur de la thymine, base nécessaire à la synthèse d’ADN et composant des ARN. 1, record 39, French, - 5%2Dfluorouracile
Record 39, Key term(s)
- 5 FU
- 5-FU
Record 39, Spanish
Record 39, Campo(s) temático(s)
- Elementos y compuestos químicos
- Bioquímica
- Medicamentos
- Tipos de cáncer y oncología
Record 39, Main entry term, Spanish
- Fluorouracilo
1, record 39, Spanish, Fluorouracilo
correct, masculine noun
Record 39, Abbreviations, Spanish
Record 39, Synonyms, Spanish
Record 39, Textual support, Spanish
Record number: 39, Textual support number: 1 DEF
Fármaco antimetabolito antineoplásico. 2, record 39, Spanish, - Fluorouracilo
Record number: 39, Textual support number: 1 OBS
[...] utilizado en el tratamiento adyuvante quimioterapéutico del carcinoma de mama y colon, y el tratamiento de éstos y otros carcinomas [...] en etapas avanzadas. 2, record 39, Spanish, - Fluorouracilo
Record 40 - internal organization data 2004-06-08
Record 40, English
Record 40, Subject field(s)
- Chemistry
Record 40, Main entry term, English
- enolization
1, record 40, English, enolization
correct
Record 40, Abbreviations, English
Record 40, Synonyms, English
Record 40, Textual support, English
Record number: 40, Textual support number: 1 CONT
"Merging Enolization and Bond Construction in the Catalyzed Asymmetric Amination of N-Acyloxazolidinones" [paper written by:] D.A. Evans and S.G. Nelson J. Am. Chem. Soc. 6452 119 1997. 2, record 40, English, - enolization
Record 40, French
Record 40, Domaine(s)
- Chimie
Record 40, Main entry term, French
- énolisation
1, record 40, French, %C3%A9nolisation
correct, feminine noun
Record 40, Abbreviations, French
Record 40, Synonyms, French
Record 40, Textual support, French
Record number: 40, Textual support number: 1 CONT
Nitriles : L'addition du magnésien au nitrile conduit à la formation d’un sel d’immonium. Ce sel d’imine bien qu'insaturé ne réagit pas avec le magnésien car cela impliquerait deux charges négatives sur le même atome d’azote. L'hydrolyse du sel d’immonium le transforme en iminoalcool. En milieu acide ce dernier fournit la cétone plus stable. Cette réaction qui constitue une très bonne méthode de synthèse des cétones possède une limitation dans le cas où l'atome d’hydrogène situé sur l'atome de carbone en a de la fonction nitrile est trop acide. Il y a alors énolisation. 2, record 40, French, - %C3%A9nolisation
Record 40, Spanish
Record 40, Campo(s) temático(s)
- Química
Record 40, Main entry term, Spanish
- enolización
1, record 40, Spanish, enolizaci%C3%B3n
correct, feminine noun
Record 40, Abbreviations, Spanish
Record 40, Synonyms, Spanish
Record 40, Textual support, Spanish
Record number: 40, Textual support number: 1 DEF
Proceso por el que un compuesto carbonílico se convierte en su tautómero enólico. 1, record 40, Spanish, - enolizaci%C3%B3n
Record 41 - internal organization data 2004-01-22
Record 41, English
Record 41, Subject field(s)
- Chemical Engineering
Record 41, Main entry term, English
- chlorination
1, record 41, English, chlorination
correct
Record 41, Abbreviations, English
Record 41, Synonyms, English
Record 41, Textual support, English
Record number: 41, Textual support number: 1 DEF
Introduction of chlorine into a compound. 2, record 41, English, - chlorination
Record number: 41, Textual support number: 1 OBS
chlorinate: to introduce chlorine into (a compound); specifically: to cause substitution of chlorine for hydrogen in (an organic compound). 3, record 41, English, - chlorination
Record 41, French
Record 41, Domaine(s)
- Génie chimique
Record 41, Main entry term, French
- chloration
1, record 41, French, chloration
correct, feminine noun
Record 41, Abbreviations, French
Record 41, Synonyms, French
Record 41, Textual support, French
Record number: 41, Textual support number: 1 DEF
En chimie inorganique, introduction par substitution ou par addition d’un ou de plusieurs atomes de chlore dans une molécule. 2, record 41, French, - chloration
Record number: 41, Textual support number: 2 DEF
Substitution dans une molécule d’un atome de chlore à un atome d’hydrogène. 3, record 41, French, - chloration
Record 41, Spanish
Record 41, Campo(s) temático(s)
- Ingenieria química
Record 41, Main entry term, Spanish
- cloración
1, record 41, Spanish, cloraci%C3%B3n
correct, feminine noun
Record 41, Abbreviations, Spanish
Record 41, Synonyms, Spanish
- cloruración 2, record 41, Spanish, cloruraci%C3%B3n
correct, feminine noun
Record 41, Textual support, Spanish
Record number: 41, Textual support number: 1 DEF
Adición de átomos de cloro a un compuesto. 3, record 41, Spanish, - cloraci%C3%B3n
Record 42 - internal organization data 2003-12-09
Record 42, English
Record 42, Subject field(s)
- Chemical Elements and Compounds
Record 42, Main entry term, English
- aryl
1, record 42, English, aryl
correct
Record 42, Abbreviations, English
Record 42, Synonyms, English
Record 42, Textual support, English
Record number: 42, Textual support number: 1 DEF
An organic radical derived from an aromatic hydrocarbon by removal of one hydrogen. 1, record 42, English, - aryl
Record 42, French
Record 42, Domaine(s)
- Éléments et composés chimiques
Record 42, Main entry term, French
- aryle
1, record 42, French, aryle
correct, masculine noun
Record 42, Abbreviations, French
Record 42, Synonyms, French
Record 42, Textual support, French
Record number: 42, Textual support number: 1 DEF
Radical dérivé d’un noyau par élimination d’un atome d’hydrogène. 1, record 42, French, - aryle
Record 42, Spanish
Record 42, Campo(s) temático(s)
- Elementos y compuestos químicos
Record 42, Main entry term, Spanish
- arilo
1, record 42, Spanish, arilo
correct, masculine noun
Record 42, Abbreviations, Spanish
Record 42, Synonyms, Spanish
Record 42, Textual support, Spanish
Record number: 42, Textual support number: 1 DEF
Radical hidrocarburo aromático. 2, record 42, Spanish, - arilo
Record 43 - internal organization data 2003-11-26
Record 43, English
Record 43, Subject field(s)
- Chemistry
Record 43, Main entry term, English
- alkylation
1, record 43, English, alkylation
correct
Record 43, Abbreviations, English
Record 43, Synonyms, English
Record 43, Textual support, English
Record number: 43, Textual support number: 1 DEF
The introduction of an alkyl radical into an organic molecule. This was one of the early chemical processes used in Germany to furnish intermediates for improved dyes, e.g., dimethylaniline. Other alkylation products are cumene, dodecylbenzene, ethylbenzene, and nonylphenol. 1, record 43, English, - alkylation
Record 43, French
Record 43, Domaine(s)
- Chimie
Record 43, Main entry term, French
- alkylation
1, record 43, French, alkylation
correct, feminine noun
Record 43, Abbreviations, French
Record 43, Synonyms, French
- alcoylation 2, record 43, French, alcoylation
correct, feminine noun
Record 43, Textual support, French
Record number: 43, Textual support number: 1 DEF
Substitution, dans une molécule, d’un atome d’hydrogène par un radical alkyle. 2, record 43, French, - alkylation
Record number: 43, Textual support number: 1 CONT
L’alkylation, dans sa définition la plus large est la réaction chimique par laquelle un groupe alkyle est introduit dans un composé organique par addition, ou par substitution. 3, record 43, French, - alkylation
Record 43, Spanish
Record 43, Campo(s) temático(s)
- Química
Record 43, Main entry term, Spanish
- alquilación
1, record 43, Spanish, alquilaci%C3%B3n
correct, feminine noun
Record 43, Abbreviations, Spanish
Record 43, Synonyms, Spanish
Record 43, Textual support, Spanish
Record number: 43, Textual support number: 1 DEF
Proceso de introducción de uno o más grupos alquilo en un compuesto químico. 2, record 43, Spanish, - alquilaci%C3%B3n
Record 44 - internal organization data 2003-11-19
Record 44, English
Record 44, Subject field(s)
- Chemistry
- Plant Biology
Record 44, Main entry term, English
- carboxylation
1, record 44, English, carboxylation
correct
Record 44, Abbreviations, English
Record 44, Synonyms, English
Record 44, Textual support, English
Record number: 44, Textual support number: 1 DEF
Addition of a carboxyl group into a molecule. 2, record 44, English, - carboxylation
Record number: 44, Textual support number: 1 CONT
Carbon dioxide assimilation. In C3 (Calvin cycle) plants, carbon reduction starts with the carboxylation of ribulose biphosphate (Rubisco) and with a first product (phosphoglyceric acid) being reduced to a 3-carbon sugar. In C4 plants, CO2 is assimilated into the 4-carbon oxaloacetic acid by the enzyme PEP carboxylase, decarboxylation takes place and the liberated CO2 is refixed through the normal Calvin cycle in bundle sheath chloroplasts. Succulents have a malate-based CAM cycle. 3, record 44, English, - carboxylation
Record 44, French
Record 44, Domaine(s)
- Chimie
- Biologie végétale
Record 44, Main entry term, French
- carboxylation
1, record 44, French, carboxylation
correct, feminine noun
Record 44, Abbreviations, French
Record 44, Synonyms, French
Record 44, Textual support, French
Record number: 44, Textual support number: 1 DEF
Fixation dans une molécule du radical carboxyle par substitution à un atome d’hydrogène ou à un atome de métal. 2, record 44, French, - carboxylation
Record number: 44, Textual support number: 1 OBS
La carboxylation est une réaction synthétique utile, qui se fait toujours par l’attaque d’un composé nucléophile sur l’anhydride carbonique; dans certains cas, il s’agit d’une réaction industrielle importante, comme la carboxylation de l’ammoniac, qui donne l’acide carbamique, ou celle du phénate de sodium, qui donne le salicylate de sodium. 2, record 44, French, - carboxylation
Record 44, Spanish
Record 44, Campo(s) temático(s)
- Química
- Biología vegetal
Record 44, Main entry term, Spanish
- carboxilación
1, record 44, Spanish, carboxilaci%C3%B3n
correct, feminine noun
Record 44, Abbreviations, Spanish
Record 44, Synonyms, Spanish
Record 44, Textual support, Spanish
Record number: 44, Textual support number: 1 DEF
Reacción química en la que un carbanión interacciona con CO2, formándose un anión carboxilato. 1, record 44, Spanish, - carboxilaci%C3%B3n
Record 45 - internal organization data 2003-10-29
Record 45, English
Record 45, Subject field(s)
- Chemical Elements and Compounds
Record 45, Main entry term, English
- arachno-borane
1, record 45, English, arachno%2Dborane
correct, see observation
Record 45, Abbreviations, English
Record 45, Synonyms, English
Record 45, Textual support, English
Record number: 45, Textual support number: 1 CONT
K. Wade noted a relationship between the number of bonding electron pairs and the stoichiometry of boron hydride structures, which matched R.E. Williams' classification of the boranes into three main structural categories: Those clusters in which boron atoms occupy n vertices of an n-cornered closed polyhedron = closo-boranes (BnHn2-). Those whereupon boron atoms occupy n vertices of an (n+1)-cornered closed polyhedron = nido-boranes (BnHn+4). And those clusters in which boron atoms occupy n vertices of an (n+2)-cornered closed polyhedron = arachno-boranes (BnHn+6). 2, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 2 CONT
Varied conditions yield a multitude of polyhedral boranes. ... Structures: - Closo-boranes (BnHn2-): (Greek "closo" = cage): Complete polyhedron. - Nido-boranes (BnHn4-: (Latin "nidus" = nest): Structures lack one vertex. - Arachno-boranes (BnHn6-: "Spiderweb" structures lacking two vertices. - Hypho-boranes (BnHn8-): "Net" structures lacking three vertices. - Conjuncto-boranes: "Joined subunit" structures, in which 2 or more of the above type are linked through a B-B or B-H-B bonds, or by a B atom. 3, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 1 OBS
arachno-: An affix used in names to designate a boron structure intermediate between nido- and hypho-. 4, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 2 OBS
boranes: The molecular hybrides of boron, e.g. B5H9 pentaborane(9). 4, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 3 OBS
For example: the compound arachno-tetraborane(10) is an arachno-borane composed of 4 boron atoms and 10 hydrogen atoms; formally it may be derived from nido-pentaborane(9) by the substraction of a boron atom. 5, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 4 OBS
An arachno-borane has a net-like structure 2). 5, record 45, English, - arachno%2Dborane
Record number: 45, Textual support number: 5 OBS
arachno-borane: The affix "arachno" must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 5, record 45, English, - arachno%2Dborane
Record 45, Key term(s)
- arachnoborane
Record 45, French
Record 45, Domaine(s)
- Éléments et composés chimiques
Record 45, Main entry term, French
- arachno-borane
1, record 45, French, arachno%2Dborane
correct, see observation, masculine noun
Record 45, Abbreviations, French
Record 45, Synonyms, French
- arachnoborane 2, record 45, French, arachnoborane
masculine noun
Record 45, Textual support, French
Record number: 45, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 45, French, - arachno%2Dborane
Record number: 45, Textual support number: 1 OBS
arachno- : Affixe utilisé en nomenclature pour désigner une structure du bore qui, du point de vue de son ouverture, est intermédiaire entre nido- et hypho-. 4, record 45, French, - arachno%2Dborane
Record number: 45, Textual support number: 2 OBS
borane : Hydrure moléculaire du bore. Par exemple : B5H9 pentaborane(9). 4, record 45, French, - arachno%2Dborane
Record number: 45, Textual support number: 3 OBS
Par exemple : l'arachno-tétraborane(10) est un arachno-borane composé de 4 atomes de bore et 10 atomes d’hydrogène; on peut formellement le considérer comme un dérivé du nidopentaborane(9) formé par soustraction d’un atome de bore. 1, record 45, French, - arachno%2Dborane
Record number: 45, Textual support number: 4 OBS
Un arachno-borane a une structure en toile d’araignée 2). 1, record 45, French, - arachno%2Dborane
Record number: 45, Textual support number: 5 OBS
arachno-borane : L’affixe «arachno» s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 45, French, - arachno%2Dborane
Record 45, Spanish
Record 45, Textual support, Spanish
Record 46 - internal organization data 2003-10-29
Record 46, English
Record 46, Subject field(s)
- Chemistry
Record 46, Main entry term, English
- hydroxy group
1, record 46, English, hydroxy%20group
correct, see observation
Record 46, Abbreviations, English
Record 46, Synonyms, English
- -OH group 2, record 46, English, %2DOH%20group
correct, see observation
- hydroxyl group 3, record 46, English, hydroxyl%20group
former designation, avoid
Record 46, Textual support, English
Record number: 46, Textual support number: 1 DEF
Group composed of one oxygen atom and one hydrogen atom and having one monovalent free valence. 4, record 46, English, - hydroxy%20group
Record number: 46, Textual support number: 1 OBS
hydroxy group: form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 4, record 46, English, - hydroxy%20group
Record 46, French
Record 46, Domaine(s)
- Chimie
Record 46, Main entry term, French
- groupe hydroxy
1, record 46, French, groupe%20hydroxy
correct, see observation, masculine noun
Record 46, Abbreviations, French
Record 46, Synonyms, French
- groupe -OH 2, record 46, French, groupe%20%2DOH
correct, see observation, masculine noun
- hydroxyles 1, record 46, French, hydroxyles
correct, masculine noun, plural
- groupe hydroxyle 3, record 46, French, groupe%20hydroxyle
former designation, avoid, masculine noun
- groupement hydroxyle 4, record 46, French, groupement%20hydroxyle
former designation, avoid, masculine noun
- groupe oxhydryle 5, record 46, French, groupe%20oxhydryle
former designation, avoid, masculine noun
- groupement oxhydryle 6, record 46, French, groupement%20oxhydryle
former designation, avoid, masculine noun
- groupement -OH 7, record 46, French, groupement%20%2DOH
former designation, avoid, masculine noun
Record 46, Textual support, French
Record number: 46, Textual support number: 1 DEF
Groupe composé d’un atome d’oxygène et d’un atome d’hydrogène, qui comporte une valence libre monovalente. 1, record 46, French, - groupe%20hydroxy
Record number: 46, Textual support number: 1 OBS
groupe hydroxy : forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 46, French, - groupe%20hydroxy
Record number: 46, Textual support number: 2 OBS
groupe -OH : nom descriptif. 1, record 46, French, - groupe%20hydroxy
Record 46, Spanish
Record 46, Campo(s) temático(s)
- Química
Record 46, Main entry term, Spanish
- grupo hidróxilo
1, record 46, Spanish, grupo%20hidr%C3%B3xilo
masculine noun
Record 46, Abbreviations, Spanish
Record 46, Synonyms, Spanish
Record 46, Textual support, Spanish
Record 47 - internal organization data 2003-10-29
Record 47, English
Record 47, Subject field(s)
- Chemical Elements and Compounds
- Chemistry
Record 47, Main entry term, English
- arachno-
1, record 47, English, arachno%2D
correct, prefix
Record 47, Abbreviations, English
Record 47, Synonyms, English
Record 47, Textual support, English
Record number: 47, Textual support number: 1 DEF
An affix used in names to designate a boron structure intermediate between nido- and hypho-. 2, record 47, English, - arachno%2D
Record number: 47, Textual support number: 1 OBS
For example: the compound arachno-tetraborane(10) is an arachno-borane composed of 4 boron atoms and 10 hydrogen atoms; formally it may be derived from nido-pentaborane(9) by the substraction of a boron atom. 3, record 47, English, - arachno%2D
Record number: 47, Textual support number: 2 OBS
An arachno-borane has a net-like structure 2). 3, record 47, English, - arachno%2D
Record number: 47, Textual support number: 3 OBS
arachno-: must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 3, record 47, English, - arachno%2D
Record 47, Key term(s)
- arachno
Record 47, French
Record 47, Domaine(s)
- Éléments et composés chimiques
- Chimie
Record 47, Main entry term, French
- arachno-
1, record 47, French, arachno%2D
correct, prefix
Record 47, Abbreviations, French
Record 47, Synonyms, French
Record 47, Textual support, French
Record number: 47, Textual support number: 1 DEF
Affixe utilisé en nomenclature pour désigner une structure du bore qui, du point de vue de son ouverture, est intermédiaire entre nido- et hypho-. 2, record 47, French, - arachno%2D
Record number: 47, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 47, French, - arachno%2D
Record number: 47, Textual support number: 1 OBS
Par exemple : l'arachno-tétraborane(10) est un arachno-borane composé de 4 atomes de bore et 10 atomes d’hydrogène; on peut formellement le considérer comme un dérivé du nido-pentaborane(9) formé par soustraction d’un atome de bore. 4, record 47, French, - arachno%2D
Record number: 47, Textual support number: 2 OBS
Un arachno-borane a une structure en toile d’araignée 2). 4, record 47, French, - arachno%2D
Record number: 47, Textual support number: 3 OBS
arachno- : s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 4, record 47, French, - arachno%2D
Record 47, Key term(s)
- arachno
Record 47, Spanish
Record 47, Textual support, Spanish
Record 48 - internal organization data 2003-10-28
Record 48, English
Record 48, Subject field(s)
- Chemistry
Record 48, Main entry term, English
- hydrogen bridge
1, record 48, English, hydrogen%20bridge
correct
Record 48, Abbreviations, English
Record 48, Synonyms, English
Record 48, Textual support, English
Record number: 48, Textual support number: 1 CONT
In many cases it is assumed that the mobile hydrogen atom is attached neither to the carbon nor to the oxygen atom but remains as a bridge between them and loosely bound to them in a special manner (hydrogen bridge). 2, record 48, English, - hydrogen%20bridge
Record number: 48, Textual support number: 2 CONT
Hydrogen bridges are possible at rather longer range than Van Der Vaals forces. 3, record 48, English, - hydrogen%20bridge
Record 48, French
Record 48, Domaine(s)
- Chimie
Record 48, Main entry term, French
- pont hydrogène
1, record 48, French, pont%20hydrog%C3%A8ne
correct, masculine noun
Record 48, Abbreviations, French
Record 48, Synonyms, French
- liaison hydrogène 2, record 48, French, liaison%20hydrog%C3%A8ne
correct, feminine noun
Record 48, Textual support, French
Record number: 48, Textual support number: 1 DEF
Type de liaison intermoléculaire très faible s’effectuant entre un atome d’hydrogène d’une molécule et un hétéroatome d’une autre molécule pour former les associations moléculaires. 2, record 48, French, - pont%20hydrog%C3%A8ne
Record number: 48, Textual support number: 1 CONT
[...] en établissant entre elles des liaisons plus stables que celles dues aux forces de Van der Waals : ces liaisons sont désignées sous le nom de liaisons hydrogènes. 3, record 48, French, - pont%20hydrog%C3%A8ne
Record 48, Spanish
Record 48, Campo(s) temático(s)
- Química
Record 48, Main entry term, Spanish
- puente hidrógeno
1, record 48, Spanish, puente%20hidr%C3%B3geno
masculine noun
Record 48, Abbreviations, Spanish
Record 48, Synonyms, Spanish
Record 48, Textual support, Spanish
Record 49 - external organization data 2003-09-03
Record 49, English
Record 49, Subject field(s)
- Chemistry
- Atomic Physics
- Nuclear Physics
- Compartment - Canadian Nuclear Safety Commission
Record 49, Main entry term, English
- tritium
1, record 49, English, tritium
correct
Record 49, Abbreviations, English
- T 2, record 49, English, T
correct
Record 49, Synonyms, English
- hydrogen 3 3, record 49, English, hydrogen%203
correct
- hydrogen-3 4, record 49, English, hydrogen%2D3
correct
- ³H 2, record 49, English, %C2%B3H
correct, see observation
- ³H 2, record 49, English, %C2%B3H
- superheavy hydrogen 5, record 49, English, superheavy%20hydrogen
- triterium 6, record 49, English, triterium
Record 49, Textual support, English
Record number: 49, Textual support number: 1 DEF
A radioactive isotope of hydrogen having atomic number 1 and atomic mass number 3. 7, record 49, English, - tritium
Record number: 49, Textual support number: 2 DEF
The isotope of hydrogen with a nucleus consisting of one proton and two neutrons. Its symbol is T, or alternatively ³H. 2, record 49, English, - tritium
Record number: 49, Textual support number: 1 CONT
Tritium is radioactive, beta-decaying with a half-life of 12.3 years. Tritium is likely to be useful as a nuclear fusion fuel and although it occurs hardly at all in nature it can be "bred" out of the abundant metal lithium. 2, record 49, English, - tritium
Record 49, French
Record 49, Domaine(s)
- Chimie
- Physique atomique
- Physique nucléaire
- Tiroir - Commission canadienne de sûreté nucléaire
Record 49, Main entry term, French
- tritium
1, record 49, French, tritium
correct, masculine noun
Record 49, Abbreviations, French
- T 2, record 49, French, T
correct
Record 49, Synonyms, French
- hydrogène-3 3, record 49, French, hydrog%C3%A8ne%2D3
correct, masculine noun
- ³H 2, record 49, French, %C2%B3H
correct, see observation
- ³H 2, record 49, French, %C2%B3H
- tritérium 4, record 49, French, trit%C3%A9rium
correct, masculine noun, obsolete
Record 49, Textual support, French
Record number: 49, Textual support number: 1 DEF
Isotope radioactif de l’hydrogène (³H) dont le noyau est formé d’un proton et de deux neutrons. (Élément chimique de symbole T.) 2, record 49, French, - tritium
Record number: 49, Textual support number: 1 CONT
Le tritium [...] est radioactif [...] avec une période de 12,3 ans environ. La méthode généralement employée pour l’obtenir consiste dans l’irradiation du lithium par des neutrons. 2, record 49, French, - tritium
Record number: 49, Textual support number: 2 CONT
Tout tritium n’ est en fait pas nécessairement produit de fission. En effet, l'origine de cet isotope radioactif de masse 3 de l'hydrogène est multiple. On le trouve dans l'environnement, parce qu'il est produit naturellement par l'action des rayons cosmiques sur les atomes d’oxygène et d’azote, mais aussi du fait des retombées des tirs nucléaires. Il est produit dans le combustible irradié à raison d’1 atome pour 104 fissions d’uranium dans les réacteurs à eau ordinaire par exemple, par fission ternaire [...] 5, record 49, French, - tritium
Record 49, Key term(s)
- hydrogène 3
- hydrogène hyperlourd
Record 49, Spanish
Record 49, Campo(s) temático(s)
- Química
- Física atómica
- Física nuclear
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 49, Main entry term, Spanish
- tritio
1, record 49, Spanish, tritio
correct, masculine noun
Record 49, Abbreviations, Spanish
- T 2, record 49, Spanish, T
correct
Record 49, Synonyms, Spanish
- hidrógeno 3 3, record 49, Spanish, hidr%C3%B3geno%203
correct, masculine noun
- ³H 4, record 49, Spanish, %C2%B3H
correct
- H³ 5, record 49, Spanish, H%C2%B3
correct
- ³H 4, record 49, Spanish, %C2%B3H
Record 49, Textual support, Spanish
Record number: 49, Textual support number: 1 DEF
Isótopo del hidrógeno con número de masa 3, cuyo núcleo consta de un protón y dos neutrones. Es un cuerpo radiactivo (emisor beta) con período de 12,37 años y energía de 0,918 MeV. 5, record 49, Spanish, - tritio
Record 50 - internal organization data 2003-04-15
Record 50, English
Record 50, Subject field(s)
- Chemical Elements and Compounds
- Chemistry
Record 50, Main entry term, English
- hydroxy-
1, record 50, English, hydroxy%2D
correct, prefix
Record 50, Abbreviations, English
Record 50, Synonyms, English
- hydroxyl- 1, record 50, English, hydroxyl%2D
avoid, prefix
- oxy- 1, record 50, English, oxy%2D
avoid, prefix
Record 50, Textual support, English
Record number: 50, Textual support number: 1 DEF
[A] chemical prefix indicating the OH group in an organic compound, such as hydroxybenzene for phenol, C6H5OH ... 2, record 50, English, - hydroxy%2D
Record number: 50, Textual support number: 1 OBS
... the use of just oxy- for the prefix is incorrect. 2, record 50, English, - hydroxy%2D
Record 50, Key term(s)
- hydroxy
- hydroxyl
- oxy
Record 50, French
Record 50, Domaine(s)
- Éléments et composés chimiques
- Chimie
Record 50, Main entry term, French
- hydroxy-
1, record 50, French, hydroxy%2D
correct, prefix
Record 50, Abbreviations, French
Record 50, Synonyms, French
- hydrox- 2, record 50, French, hydrox%2D
avoid, prefix
- oxy- 3, record 50, French, oxy%2D
avoid, prefix
Record 50, Textual support, French
Record number: 50, Textual support number: 1 DEF
Préfixe servant à désigner dans un corps organique, la substitution d’un atome d’hydrogène par le radical monovalent-OH. 3, record 50, French, - hydroxy%2D
Record number: 50, Textual support number: 1 OBS
hydroxy- : Ce préfixe doit remplacer la désignation «oxy», incorrecte dans ce cas. 3, record 50, French, - hydroxy%2D
Record 50, Key term(s)
- hydroxy
- hydrox
- oxy
Record 50, Spanish
Record 50, Textual support, Spanish
Record 51 - internal organization data 2003-03-03
Record 51, English
Record 51, Subject field(s)
- Chemical Elements and Compounds
Record 51, Main entry term, English
- hydroxy-terminated polyol
1, record 51, English, hydroxy%2Dterminated%20polyol
correct
Record 51, Abbreviations, English
Record 51, Synonyms, English
- hydroxy terminated polyol 2, record 51, English, hydroxy%20terminated%20polyol
correct
Record 51, Textual support, English
Record number: 51, Textual support number: 1 OBS
hydroxy-: [A] chemical prefix indicating the OH group in an organic compound, such as hydroxybenzene for phenol, C6H5OH ... [oxy- and hydroxyl- are to be avoided in this sense.] 3, record 51, English, - hydroxy%2Dterminated%20polyol
Record 51, French
Record 51, Domaine(s)
- Éléments et composés chimiques
Record 51, Main entry term, French
- polyol à terminaison hydroxy
1, record 51, French, polyol%20%C3%A0%20terminaison%20hydroxy
correct, masculine noun
Record 51, Abbreviations, French
Record 51, Synonyms, French
Record 51, Textual support, French
Record number: 51, Textual support number: 1 OBS
hydroxy-: Préfixe servant à désigner dans un corps organique, la substitution d’un atome d’hydrogène par le radical monovalent-OH. [Il est à noter que ce] préfixe doit remplacer la désignation «oxy», incorrecte dans ce cas. 2, record 51, French, - polyol%20%C3%A0%20terminaison%20hydroxy
Record 51, Spanish
Record 51, Textual support, Spanish
Record 52 - internal organization data 2003-02-18
Record 52, English
Record 52, Subject field(s)
- Chemistry
- Hydrology and Hydrography
- Atmospheric, Climatic and Meteorological Phenomena
Record 52, Main entry term, English
- water molecule
1, record 52, English, water%20molecule
correct
Record 52, Abbreviations, English
Record 52, Synonyms, English
- molecule of water 2, record 52, English, molecule%20of%20water
correct
Record 52, Textual support, English
Record number: 52, Textual support number: 1 DEF
... molecule ... made up of two hydrogen atoms and one oxygen atom (H2O). 3, record 52, English, - water%20molecule
Record number: 52, Textual support number: 1 CONT
water vapor: The gaseous form of water; molecules of water present as a gas in an atmosphere of other gases. 2, record 52, English, - water%20molecule
Record number: 52, Textual support number: 2 CONT
The temperature of the water gets stuck because, on the microscopic scale, to change liquid water into steam you must supply energy to rip apart clusters of water molecules. 4, record 52, English, - water%20molecule
Record 52, French
Record 52, Domaine(s)
- Chimie
- Hydrologie et hydrographie
- Phénomènes météorologiques, climatiques et atmosphériques
Record 52, Main entry term, French
- molécule d’eau
1, record 52, French, mol%C3%A9cule%20d%26rsquo%3Beau
correct, feminine noun
Record 52, Abbreviations, French
Record 52, Synonyms, French
Record 52, Textual support, French
Record number: 52, Textual support number: 1 DEF
Particule formée de deux atomes d’hydrogène et d’un atome d’oxygène représentant la plus petite quantité d’eau pouvant exister à l'état libre. 2, record 52, French, - mol%C3%A9cule%20d%26rsquo%3Beau
Record 52, Spanish
Record 52, Textual support, Spanish
Record 53 - internal organization data 2003-02-17
Record 53, English
Record 53, Subject field(s)
- Chemistry
Record 53, Main entry term, English
- hydrogen atom
1, record 53, English, hydrogen%20atom
correct
Record 53, Abbreviations, English
Record 53, Synonyms, English
Record 53, Textual support, English
Record number: 53, Textual support number: 1 CONT
A hydrogen atom consists of one proton and one electron. 1, record 53, English, - hydrogen%20atom
Record 53, French
Record 53, Domaine(s)
- Chimie
Record 53, Main entry term, French
- atome d'hydrogène
1, record 53, French, atome%20d%27hydrog%C3%A8ne
correct, masculine noun
Record 53, Abbreviations, French
Record 53, Synonyms, French
Record 53, Textual support, French
Record number: 53, Textual support number: 1 CONT
Un atome est [...] constitué de proton(s) positif(s), de neutron(s) neutre(s), et d’électron(s) négatif(s). Il existe [...] 103 [atomes] connus [...] où le nombre de protons, neutrons et d’électrons varient, mais quel que soit le nombre de proton(ou d’électrons) il sera toujours égal au nombre d’électrons(ou de protons), car tous les atomes dans leur état fondamental sont neutres. Par exemple, l'atome d’hydrogène(de symbole H) possède 1 proton et 1 électron, l'atome de carbone(C), 6 électrons et 6 protons ou encore l'atome d’oxygène(O), 8 électrons et 8 protons et quel que soit leur nombre de neutrons, tous ces atomes sont [...] neutres. 2, record 53, French, - atome%20d%27hydrog%C3%A8ne
Record 53, Spanish
Record 53, Textual support, Spanish
Record 54 - internal organization data 2003-02-10
Record 54, English
Record 54, Subject field(s)
- Chemical Elements and Compounds
Record 54, Main entry term, English
- hydroxylium
1, record 54, English, hydroxylium
correct, see observation
Record 54, Abbreviations, English
Record 54, Synonyms, English
- hydroxylium ion 1, record 54, English, hydroxylium%20ion
correct
Record 54, Textual support, English
Record number: 54, Textual support number: 1 DEF
Positively charged group composed of one oxygen atom and one hydrogen atom, HO+. 1, record 54, English, - hydroxylium
Record number: 54, Textual support number: 1 OBS
hydroxylium: form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 1, record 54, English, - hydroxylium
Record 54, French
Record 54, Domaine(s)
- Éléments et composés chimiques
Record 54, Main entry term, French
- hydroxylium
1, record 54, French, hydroxylium
correct, see observation, masculine noun
Record 54, Abbreviations, French
Record 54, Synonyms, French
- ion hydroxylium 1, record 54, French, ion%20hydroxylium
correct, see observation, masculine noun
Record 54, Textual support, French
Record number: 54, Textual support number: 1 DEF
Groupe, chargé positivement, composé d’un atome d’oxygène et d’un atome d’hydrogène, HO+. 1, record 54, French, - hydroxylium
Record number: 54, Textual support number: 1 OBS
hydroxylium : forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 54, French, - hydroxylium
Record 54, Spanish
Record 54, Textual support, Spanish
Record 55 - internal organization data 2003-02-06
Record 55, English
Record 55, Subject field(s)
- Chemical Elements and Compounds
Record 55, Main entry term, English
- halogenated
1, record 55, English, halogenated
correct
Record 55, Abbreviations, English
Record 55, Synonyms, English
Record 55, Textual support, English
Record number: 55, Textual support number: 1 DEF
Combined with a halogen. 2, record 55, English, - halogenated
Record number: 55, Textual support number: 1 CONT
The polar stratospheric clouds, which are thought to be composed of ice crystals but may contain sulfuric or nitric acid as well, are central to a group of theories that assert that man-made halogenated chemicals are behind the ozone depletion. 3, record 55, English, - halogenated
Record number: 55, Textual support number: 1 OBS
halogenate (v.): to introduce an halogen into an organic compound. 4, record 55, English, - halogenated
Record number: 55, Textual support number: 1 PHR
Halogenated semivolatile compound, halogenated volatile compound. 5, record 55, English, - halogenated
Record 55, French
Record 55, Domaine(s)
- Éléments et composés chimiques
Record 55, Main entry term, French
- halogéné
1, record 55, French, halog%C3%A9n%C3%A9
correct
Record 55, Abbreviations, French
Record 55, Synonyms, French
Record 55, Textual support, French
Record number: 55, Textual support number: 1 DEF
Se dit d’une molécule dans laquelle au moins un atome d’halogène remplace un atome d’hydrogène. 2, record 55, French, - halog%C3%A9n%C3%A9
Record number: 55, Textual support number: 1 OBS
halogéner : soumettre à l’halogénation. 3, record 55, French, - halog%C3%A9n%C3%A9
Record number: 55, Textual support number: 1 PHR
Composé halogéné semi-volatil, composé halogéné volatil. 4, record 55, French, - halog%C3%A9n%C3%A9
Record 55, Spanish
Record 55, Campo(s) temático(s)
- Elementos y compuestos químicos
Record 55, Main entry term, Spanish
- halogenado
1, record 55, Spanish, halogenado
correct, adjective
Record 55, Abbreviations, Spanish
Record 55, Synonyms, Spanish
Record 55, Textual support, Spanish
Record number: 55, Textual support number: 1 DEF
Que posee átomos de halógenos. 2, record 55, Spanish, - halogenado
Record number: 55, Textual support number: 1 CONT
Con los halógenos, cloro y bromo, se obtienen derivados halogenados por substitución, operación que recibe el nombre de "halogenación". 3, record 55, Spanish, - halogenado
Record 56 - internal organization data 2003-02-06
Record 56, English
Record 56, Subject field(s)
- Chemical Elements and Compounds
- Pollutants
- Climate Change
Record 56, Main entry term, English
- halogenated methane
1, record 56, English, halogenated%20methane
correct
Record 56, Abbreviations, English
Record 56, Synonyms, English
- halomethane 2, record 56, English, halomethane
correct
Record 56, Textual support, English
Record number: 56, Textual support number: 1 CONT
The ozone layer is the principal shield preventing harmful short-wave ultraviolet radiation from reaching the surface of the earth. Suggestions that man's activities may be leading to a moderate reduction of the stratospheric ozone layer is of justifiable concern. Several threats such as exhaust emissions from high altitude aircraft and halomethanes diffusing up from the troposphere appear to have a sound theoretical support to serve as a basis of concern. 3, record 56, English, - halogenated%20methane
Record 56, French
Record 56, Domaine(s)
- Éléments et composés chimiques
- Agents de pollution
- Changements climatiques
Record 56, Main entry term, French
- méthane halogéné
1, record 56, French, m%C3%A9thane%20halog%C3%A9n%C3%A9
correct, masculine noun
Record 56, Abbreviations, French
Record 56, Synonyms, French
- halométhane 2, record 56, French, halom%C3%A9thane
correct, masculine noun
Record 56, Textual support, French
Record number: 56, Textual support number: 1 DEF
Chlorofluorocarbone composé d’un seul atome de carbone ainsi que d’atomes d’halogènes, ces derniers remplaçant partiellement ou entièrement les atomes d’hydrogène. 3, record 56, French, - m%C3%A9thane%20halog%C3%A9n%C3%A9
Record number: 56, Textual support number: 1 OBS
Si le composé comprend plus d’un atome de carbone, on parle alors de façon générale d’hydrocarbure halogéné ou, de façon spécifique, si on connaît ce nombre, d’haloéthane, d’haloéthylène, etc., selon le cas. 3, record 56, French, - m%C3%A9thane%20halog%C3%A9n%C3%A9
Record number: 56, Textual support number: 2 OBS
Les halométhanes se distinguent des chlorofluorométhanes; pour les premiers tous les halogènes peuvent remplacer les atomes d’hydrogène, pour les seconds seulement deux halogènes, le chlore et le fluor, peuvent remplacer les atomes hydrogène. Cependant, comme ces deux halogènes sont les plus importants, dans la pratique on confond ces deux familles de substances. 3, record 56, French, - m%C3%A9thane%20halog%C3%A9n%C3%A9
Record number: 56, Textual support number: 3 OBS
[Exemples de méthanes halogénés :] monochlorométhane [...] dichlorométhane [...] trichlorométhane [...] tétrachlorométhane [...] 4, record 56, French, - m%C3%A9thane%20halog%C3%A9n%C3%A9
Record 56, Spanish
Record 56, Textual support, Spanish
Record 57 - internal organization data 2002-10-15
Record 57, English
Record 57, Subject field(s)
- Chemistry
Record 57, Main entry term, English
- displaceable
1, record 57, English, displaceable
correct
Record 57, Abbreviations, English
Record 57, Synonyms, English
- ionizable 2, record 57, English, ionizable
correct
Record 57, Textual support, English
Record number: 57, Textual support number: 1 CONT
Acids with one, two, and three displaceable hydrogen atoms per molecule are termed mono-, di-, and tribasic acids respectively. 1, record 57, English, - displaceable
Record 57, French
Record 57, Domaine(s)
- Chimie
Record 57, Main entry term, French
- ionisable
1, record 57, French, ionisable
correct
Record 57, Abbreviations, French
Record 57, Synonyms, French
Record 57, Textual support, French
Record number: 57, Textual support number: 1 CONT
L'acide acétique est mono acide, car il possède un seul atome d’hydrogène ionisable. 2, record 57, French, - ionisable
Record number: 57, Textual support number: 1 OBS
«déplacement» existe en français mais la langue n’a pas généré l’adjectif «déplaçable» qui correspondrait à «displaceable» en anglais. 3, record 57, French, - ionisable
Record 57, Spanish
Record 57, Campo(s) temático(s)
- Química
Record 57, Main entry term, Spanish
- ionizable 1, record 57, Spanish, ionizable
Record 57, Abbreviations, Spanish
Record 57, Synonyms, Spanish
Record 57, Textual support, Spanish
Record 58 - internal organization data 2002-07-09
Record 58, English
Record 58, Subject field(s)
- Chemical Elements and Compounds
Record 58, Main entry term, English
- nido-borane
1, record 58, English, nido%2Dborane
correct, see observation
Record 58, Abbreviations, English
Record 58, Synonyms, English
Record 58, Textual support, English
Record number: 58, Textual support number: 1 CONT
K. Wade noted a relationship between the number of bonding electron pairs and the stoichiometry of boron hydride structures, which matched R.E. Williams' classification of the boranes into three main structural categories: Those clusters in which boron atoms occupy n vertices of an n-cornered closed polyhedron = closo-boranes (BnHn2-). Those whereupon boron atoms occupy n vertices of an (n+1)-cornered closed polyhedron = nido-boranes (BnHn+4). And those clusters in which boron atoms occupy n vertices of an (n+2)-cornered closed polyhedron = arachno-boranes (BnHn+6). 2, record 58, English, - nido%2Dborane
Record number: 58, Textual support number: 2 CONT
Varied conditions yield a multitude of polyhedral boranes. ... Structures: - Closo-boranes (BnHn2-): (Greek "closo" = cage): Complete polyhedron. - Nido-boranes (BnHn4-: (Latin "nidus" = nest): Structures lack one vertex. - Arachno-boranes (BnHn6-: "Spiderweb" structures lacking two vertices. - Hypho-boranes (BnHn8-): "Net" structures lacking three vertices. - Conjuncto-boranes: "Joined subunit" structures, in which 2 or more of the above type are linked through a B-B or B-H-B bonds, or by a B atom. 3, record 58, English, - nido%2Dborane
Record number: 58, Textual support number: 1 OBS
nido-: An affix used in names to denote a nest-like structure, especially a boron skeleton that is almost closed. 4, record 58, English, - nido%2Dborane
Record number: 58, Textual support number: 2 OBS
boranes: The molecular hybrides of boron, e.g. B5H9 pentaborane(9). 4, record 58, English, - nido%2Dborane
Record number: 58, Textual support number: 3 OBS
For example: the compound nido-pentaborane(9) is a nido-borane composed of 5 boron atoms and 9 hydrogen atoms; formally, it may be derived from closo-hexaborane(6) by the substraction of a boron atom. 5, record 58, English, - nido%2Dborane
Record number: 58, Textual support number: 4 OBS
nido-borane: The affix "nido" must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 5, record 58, English, - nido%2Dborane
Record 58, Key term(s)
- nidoborane
Record 58, French
Record 58, Domaine(s)
- Éléments et composés chimiques
Record 58, Main entry term, French
- nido-borane
1, record 58, French, nido%2Dborane
correct, see observation, masculine noun
Record 58, Abbreviations, French
Record 58, Synonyms, French
- nidoborane 2, record 58, French, nidoborane
masculine noun
Record 58, Textual support, French
Record number: 58, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 58, French, - nido%2Dborane
Record number: 58, Textual support number: 1 OBS
nido- : Affixe utilisé pour désigner une structure en forme de nid; en particulier les squelettes d’atomes de bore presque fermés. 4, record 58, French, - nido%2Dborane
Record number: 58, Textual support number: 2 OBS
borane : Hydrure moléculaire du bore. Par exemple : B5H9 pentaborane(9). 4, record 58, French, - nido%2Dborane
Record number: 58, Textual support number: 3 OBS
Par exemple : le nido-pentaborane(9) est un nido-borane composé de 5 atomes de bore et de 9 atomes d’hydrogène; on peut formellement le considérer comme issu du closo-hexaborane(6) par soustraction d’un atome de bore. 1, record 58, French, - nido%2Dborane
Record number: 58, Textual support number: 4 OBS
nido-borane : L’affixe «nido» s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 1, record 58, French, - nido%2Dborane
Record 58, Spanish
Record 58, Textual support, Spanish
Record 59 - internal organization data 2002-07-09
Record 59, English
Record 59, Subject field(s)
- Chemical Elements and Compounds
- Chemistry
Record 59, Main entry term, English
- nido-
1, record 59, English, nido%2D
correct, see observation, prefix
Record 59, Abbreviations, English
Record 59, Synonyms, English
Record 59, Textual support, English
Record number: 59, Textual support number: 1 DEF
nido-: An affix used in names to denote a nest-like structure, especially a boron skeleton that is almost closed. 2, record 59, English, - nido%2D
Record number: 59, Textual support number: 1 OBS
For example: the compound nido-pentaborane(9) is a nido-borane composed of 5 boron atoms and 9 hydrogen atoms; formally, it may be derived from closo-hexaborane(6) by the substraction of a boron atom. 3, record 59, English, - nido%2D
Record number: 59, Textual support number: 2 OBS
nido-: must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 3, record 59, English, - nido%2D
Record 59, Key term(s)
- nido
Record 59, French
Record 59, Domaine(s)
- Éléments et composés chimiques
- Chimie
Record 59, Main entry term, French
- nido-
1, record 59, French, nido%2D
correct, see observation, prefix
Record 59, Abbreviations, French
Record 59, Synonyms, French
Record 59, Textual support, French
Record number: 59, Textual support number: 1 DEF
Affixe utilisé pour désigner une structure en forme de nid; en particulier les squelettes d’atomes de bore presque fermés. 2, record 59, French, - nido%2D
Record number: 59, Textual support number: 1 CONT
Le mot de borane désigne des hydrures de bore, ainsi que des composés organiques de formule générale BH3R~ résultant de la substitution d’un ou de plusieurs atomes d’hydrogène du borane le plus simple BH. [...] Le bore, élément très léger, se distingue par une grande aptitude à former des dérivés hydrogénés de structures très variées : les atomes de bore peuvent en effet former des assemblages triangulaires (closoboranes), des chaînes ayant l’aspect d’un nid (nidoboranes) ou d’une toile d’araignée (arachnoboranes), et des dimères que l’on nomme conjonctoboranes. 3, record 59, French, - nido%2D
Record number: 59, Textual support number: 1 OBS
Par exemple : le nido-pentaborane(9) est un nido-borane composé de 5 atomes de bore et de 9 atomes d’hydrogène; on peut formellement le considérer comme issu du closo-hexaborane(6) par soustraction d’un atome de bore. 4, record 59, French, - nido%2D
Record number: 59, Textual support number: 2 OBS
nido- : s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée). 4, record 59, French, - nido%2D
Record 59, Key term(s)
- nido
Record 59, Spanish
Record 59, Textual support, Spanish
Record 60 - internal organization data 2002-04-29
Record 60, English
Record 60, Subject field(s)
- Scientific Instruments
Record 60, Main entry term, English
- long wavelength spectrometer
1, record 60, English, long%20wavelength%20spectrometer
correct
Record 60, Abbreviations, English
- LWS 1, record 60, English, LWS
correct
Record 60, Synonyms, English
Record 60, Textual support, English
Record number: 60, Textual support number: 1 OBS
One of four instruments on board ISO. 2, record 60, English, - long%20wavelength%20spectrometer
Record 60, French
Record 60, Domaine(s)
- Instruments scientifiques
Record 60, Main entry term, French
- spectromètre à grande longueur d’onde
1, record 60, French, spectrom%C3%A8tre%20%C3%A0%20grande%20longueur%20d%26rsquo%3Bonde
correct, masculine noun
Record 60, Abbreviations, French
- LWS 2, record 60, French, LWS
correct, masculine noun
Record 60, Synonyms, French
- spectromètre ondes longues 3, record 60, French, spectrom%C3%A8tre%20ondes%20longues
correct, masculine noun
Record 60, Textual support, French
Record number: 60, Textual support number: 1 CONT
Grâce au spectromètre à grande longueur d’onde(LWS) embarqué sur ISO, les chercheurs ont trouvé un résultat d’un atome de deutérium pour cent mille atomes d’hydrogène. 2, record 60, French, - spectrom%C3%A8tre%20%C3%A0%20grande%20longueur%20d%26rsquo%3Bonde
Record number: 60, Textual support number: 2 CONT
Un autre auteur principal de Stockholm rend compte de l’utilisation du spectromètre ondes longues d’ISO pour examiner une étrange zone brillante des nuages sombres du Caméléon appelée HH 54. 4, record 60, French, - spectrom%C3%A8tre%20%C3%A0%20grande%20longueur%20d%26rsquo%3Bonde
Record 60, Spanish
Record 60, Textual support, Spanish
Record 61 - internal organization data 2002-01-17
Record 61, English
Record 61, Subject field(s)
- Electrolysis (Electrokinetics)
- Electrochemistry
- Chemistry
Record 61, Main entry term, English
- hydrogen bond
1, record 61, English, hydrogen%20bond
correct
Record 61, Abbreviations, English
Record 61, Synonyms, English
Record 61, Textual support, English
Record number: 61, Textual support number: 1 DEF
A type of bond formed when a hydrogen atom bonded to atom A in one molecule makes an additional bond to atom B either in the same or another molecule. 2, record 61, English, - hydrogen%20bond
Record number: 61, Textual support number: 1 CONT
hydrogen - containing substances ... can only be brought logically into the Lewis Scheme by appealing to the fact that the reaction between a proton acid, which may be designated as XH, and a base, denoted by B, passes through an intermediate hydrogen-bonded state X-H ... B (in which the dotted line indicates a hydrogen-bond, a relatively weak secondary attractive force). 3, record 61, English, - hydrogen%20bond
Record 61, French
Record 61, Domaine(s)
- Électrolyse (Électrocinétique)
- Électrochimie
- Chimie
Record 61, Main entry term, French
- liaison hydrogène
1, record 61, French, liaison%20hydrog%C3%A8ne
correct, feminine noun
Record 61, Abbreviations, French
Record 61, Synonyms, French
Record 61, Textual support, French
Record number: 61, Textual support number: 1 DEF
Force d’origine électrostatique intermédiaire entre la liaison ionique et la force Van der Waals, que l’on rencontre chez les corps à constante diélectrique élevée H2O, HCN, H2O2, HF, etc., et responsable d’un grand nombre de propriétés physiques et chimiques. 2, record 61, French, - liaison%20hydrog%C3%A8ne
Record number: 61, Textual support number: 1 CONT
[...] au cours de la neutralisation, il se forme d’abord un composé moléculaire entre l'acide et la base(l'un des deux partenaires pouvant être une molécule de solvant). Ce composé résulte en fait de l'établissement d’une liaison hydrogène entre l'atome H de l'acide et l'atome donneur d’électrons de la base; [...]. 1, record 61, French, - liaison%20hydrog%C3%A8ne
Record 61, Spanish
Record 61, Campo(s) temático(s)
- Electrólisis (Electrocinética)
- Electroquímica
- Química
Record 61, Main entry term, Spanish
- enlace de hidrógeno
1, record 61, Spanish, enlace%20de%20hidr%C3%B3geno
masculine noun
Record 61, Abbreviations, Spanish
Record 61, Synonyms, Spanish
Record 61, Textual support, Spanish
Record 62 - internal organization data 2001-10-25
Record 62, English
Record 62, Subject field(s)
- Chemical Elements and Compounds
- Air Pollution
Record 62, Main entry term, English
- chlorine sink
1, record 62, English, chlorine%20sink
correct
Record 62, Abbreviations, English
Record 62, Synonyms, English
Record 62, Textual support, English
Record number: 62, Textual support number: 1 CONT
The chlorine sink is HC1 (hydrogen chloride, also known as hydrochloric acid) which is formed primarily through the reaction of chlorine with methane and the perhydroxyl radical. 2, record 62, English, - chlorine%20sink
Record number: 62, Textual support number: 1 OBS
Removes atomic chlorine from an environment 3, record 62, English, - chlorine%20sink
Record 62, French
Record 62, Domaine(s)
- Éléments et composés chimiques
- Pollution de l'air
Record 62, Main entry term, French
- puits de chlore
1, record 62, French, puits%20de%20chlore
correct, masculine noun
Record 62, Abbreviations, French
Record 62, Synonyms, French
Record 62, Textual support, French
Record number: 62, Textual support number: 1 DEF
Ce qui contribue à faire disparaître le chlore sous forme atomique d’un milieu. 2, record 62, French, - puits%20de%20chlore
Record number: 62, Textual support number: 1 OBS
Le chlorure d’hydrogène est une espèce puits qui reçoit l'atome de chlore après réaction avec le méthane(CH4+C1=HC1+CH3) ou après réaction avec un radical perhydroxyl(HO2+C1=HC1+02). 2, record 62, French, - puits%20de%20chlore
Record 62, Spanish
Record 62, Campo(s) temático(s)
- Elementos y compuestos químicos
- Contaminación del aire
Record 62, Main entry term, Spanish
- sumidero del cloro
1, record 62, Spanish, sumidero%20del%20cloro
masculine noun
Record 62, Abbreviations, Spanish
Record 62, Synonyms, Spanish
Record 62, Textual support, Spanish
Record 63 - internal organization data 2001-06-07
Record 63, English
Record 63, Subject field(s)
- Chemical Elements and Compounds
- Aromatic Hydrocarbons
- Pollutants
Record 63, Main entry term, English
- aromatic cyclic hydrocarbon
1, record 63, English, aromatic%20cyclic%20hydrocarbon
correct
Record 63, Abbreviations, English
Record 63, Synonyms, English
Record 63, Textual support, English
Record number: 63, Textual support number: 1 CONT
Metabolism of the normally stable, unsubstituted aromatic cyclic hydrocarbon, such as ... anthracene does not result from replacement of a nuclear hydrogen but ... involves first an intermediary oxidation to epoxide. 2, record 63, English, - aromatic%20cyclic%20hydrocarbon
Record number: 63, Textual support number: 2 CONT
The fractional approach being employed separates petroleum mixtures into fractions based on carbon content and into sub-fractions comprised of aliphatic (straight or branched chain) hydrocarbons and aromatic (cyclic) hydrocarbons. 3, record 63, English, - aromatic%20cyclic%20hydrocarbon
Record 63, Key term(s)
- aromatic cyclic hydrocarbons
- cyclic aromatic hydrocarbon
- cyclic aromatic hydrocarbons
Record 63, French
Record 63, Domaine(s)
- Éléments et composés chimiques
- Hydrocarbures aromatiques
- Agents de pollution
Record 63, Main entry term, French
- hydrocarbure cyclique aromatique
1, record 63, French, hydrocarbure%20cyclique%20aromatique
correct, masculine noun
Record 63, Abbreviations, French
Record 63, Synonyms, French
- hydrocarbure aromatique cyclique 2, record 63, French, hydrocarbure%20aromatique%20cyclique
masculine noun
- hydrocarbone cyclique aromatique 3, record 63, French, hydrocarbone%20cyclique%20aromatique
avoid, masculine noun
Record 63, Textual support, French
Record number: 63, Textual support number: 1 CONT
[...] la Terre aurait été ensemencée par des molécules organiques arrivées par le moyen de comètes et d’astéroïdes. Ces «briques» auraient [...] été les éléments de base qui ont permis l’apparition de la vie. Ces molécules, dont cinq ont été identifiées, seraient des hydrocarbures cycliques aromatiques. 4, record 63, French, - hydrocarbure%20cyclique%20aromatique
Record number: 63, Textual support number: 2 CONT
Les hydrocarbones et dérivés(HCs) [...] représentent une très grande partie des composés organiques, puisqu'ils sont uniquement composés d’hydrogène et de carbone. Leur diversité provient de la différence du type de liaison entre les atomes(droite, cyclique). Ils peuvent également être saturés ou insaturés. [On trouve] les HCs aliphatiques [qui] ont des chaînes droites ou cycliques, où l'atome de carbone est relié à 3 ou 4 autres atomes(alcanes ou alcène) [et] les HCs aromatiques, basés sur la liaison cyclique du benzène. 3, record 63, French, - hydrocarbure%20cyclique%20aromatique
Record number: 63, Textual support number: 3 CONT
L’étude des carcasses de bélugas morts révèle que les niveaux de contaminants y restent élevés. Plomb, mercure, hydrocarbures aromatiques cycliques et organochlorés sont les polluants les plus fréquents. 2, record 63, French, - hydrocarbure%20cyclique%20aromatique
Record number: 63, Textual support number: 1 OBS
Voir aussi «hydrocarbure aromatique polycyclique». 5, record 63, French, - hydrocarbure%20cyclique%20aromatique
Record 63, Spanish
Record 63, Textual support, Spanish
Record 64 - internal organization data 2001-04-18
Record 64, English
Record 64, Subject field(s)
- Atomic Physics
Record 64, Main entry term, English
- antihydrogen
1, record 64, English, antihydrogen
correct
Record 64, Abbreviations, English
Record 64, Synonyms, English
Record 64, Textual support, English
Record number: 64, Textual support number: 1 CONT
In the more distant future, extremely cold antiprotons should make it possible to produce and study antihydrogen, the antimatter atom formed by a positron in orbit around an antiproton. (Positrons, or antielectrons, are produced naturally in the radioactive decay of atomic nuclei.) 1, record 64, English, - antihydrogen
Record 64, French
Record 64, Domaine(s)
- Physique atomique
Record 64, Main entry term, French
- antihydrogène
1, record 64, French, antihydrog%C3%A8ne
correct, masculine noun
Record 64, Abbreviations, French
Record 64, Synonyms, French
Record 64, Textual support, French
Record number: 64, Textual support number: 1 CONT
L'antihydrogène est un atome constitué entièrement d’antiparticules : alors que l'hydrogène ordinaire se compose d’un proton positif et d’un électron négatif en orbite autour de ce proton, l'atome d’antihydrogène possède en son centre un «antiproton» négatif lié à un «positon» positif. 2, record 64, French, - antihydrog%C3%A8ne
Record 64, Spanish
Record 64, Campo(s) temático(s)
- Física atómica
Record 64, Main entry term, Spanish
- antihidrógeno
1, record 64, Spanish, antihidr%C3%B3geno
masculine noun
Record 64, Abbreviations, Spanish
Record 64, Synonyms, Spanish
Record 64, Textual support, Spanish
Record number: 64, Textual support number: 1 DEF
El átomo de antimateria formado por un positrón que rota en torno a un antiprotón. 1, record 64, Spanish, - antihidr%C3%B3geno
Record number: 64, Textual support number: 1 OBS
Los positrones, o antielectrones, se producen de modo natural en la desintegración radiactiva de núcleos atómicos. 1, record 64, Spanish, - antihidr%C3%B3geno
Record 65 - internal organization data 2001-04-12
Record 65, English
Record 65, Subject field(s)
- Atomic Physics
Record 65, Main entry term, English
- helium-3
1, record 65, English, helium%2D3
correct
Record 65, Abbreviations, English
- 3He 2, record 65, English, 3He
correct
Record 65, Synonyms, English
- helium 3 3, record 65, English, helium%203
correct
Record 65, Textual support, English
Record number: 65, Textual support number: 1 CONT
The thought experiments are concerned with the behavior of two types of helium atoms, denoted3He4He. These two types differ only in the nature of their nuclei. The3He nucleus contains two protons and one neutron, whereas the4He nucleus contains two protons and two neutrons. 4, record 65, English, - helium%2D3
Record 65, French
Record 65, Domaine(s)
- Physique atomique
Record 65, Main entry term, French
- hélium 3
1, record 65, French, h%C3%A9lium%203
correct, masculine noun
Record 65, Abbreviations, French
- He 2, record 65, French, He
correct
Record 65, Synonyms, French
- hélium-3 3, record 65, French, h%C3%A9lium%2D3
correct, masculine noun
Record 65, Textual support, French
Record number: 65, Textual support number: 1 CONT
L'autre isotope est l'hélium-3(3He) qui ne comprend qu'un seul neutron et deux protons, de sorte que l'atome d’hélium-3(3) He est un fermion. L'hélium-3 est très rare(un atome sur un million) et s’obtient en pratique de la désintégration du tritium, isotope instable de l'hydrogène utilisé principalement dans les [...] armes nucléaires. 4, record 65, French, - h%C3%A9lium%203
Record 65, Spanish
Record 65, Campo(s) temático(s)
- Física atómica
Record 65, Main entry term, Spanish
Record 65, Abbreviations, Spanish
Record 65, Synonyms, Spanish
Record 65, Textual support, Spanish
Record number: 65, Textual support number: 1 CONT
[...] dos clases de átomos de helio:3He y4He, que se distinguen por la naturaleza de sus núcleos. El núcleo de3He contiene dos protones y un neutrón; el de4He, dos protones y dos neutrones. Ambos núcleos poseen, pues, el mismo número de protones, lo que indica que presentarán la misma carga eléctrica. 1, record 65, Spanish, - 3He
Record 66 - internal organization data 2001-01-16
Record 66, English
Record 66, Subject field(s)
- Chemical Elements and Compounds
Record 66, Main entry term, English
- alkyl radical
1, record 66, English, alkyl%20radical
correct
Record 66, Abbreviations, English
Record 66, Synonyms, English
Record 66, Textual support, English
Record number: 66, Textual support number: 1 DEF
A carbon-centered radical derived formally by removal of one hydrogen atom from an alkane, e.g. CH3CH2CH2 propyl. 2, record 66, English, - alkyl%20radical
Record number: 66, Textual support number: 1 OBS
An alkyl group or an alkyl radical is structurally similar to an alkane group, where a hydrogen atom is missing. Alkyl radicals are named by replacing the ending "-ane" from the name of the alkane, with the "-yl" suffix. 3, record 66, English, - alkyl%20radical
Record 66, French
Record 66, Domaine(s)
- Éléments et composés chimiques
Record 66, Main entry term, French
- radical alkyle
1, record 66, French, radical%20alkyle
correct, masculine noun
Record 66, Abbreviations, French
Record 66, Synonyms, French
Record 66, Textual support, French
Record number: 66, Textual support number: 1 DEF
Radical carboné résultant formellement de l'enlèvement d’un atome d’hydrogène à un alcane. 1, record 66, French, - radical%20alkyle
Record 66, Spanish
Record 66, Textual support, Spanish
Record 67 - internal organization data 2000-10-17
Record 67, English
Record 67, Subject field(s)
- Chemical Elements and Compounds
Record 67, Main entry term, English
- acetylide
1, record 67, English, acetylide
correct
Record 67, Abbreviations, English
Record 67, Synonyms, English
- acetylure 2, record 67, English, acetylure
Record 67, Textual support, English
Record number: 67, Textual support number: 1 DEF
A compound formed from acetylene with the 4 atoms replaced by metals, as in cuprous acetylide (cu2 C2). 1, record 67, English, - acetylide
Record 67, French
Record 67, Domaine(s)
- Éléments et composés chimiques
Record 67, Main entry term, French
- acétylure
1, record 67, French, ac%C3%A9tylure
correct, masculine noun
Record 67, Abbreviations, French
Record 67, Synonyms, French
Record 67, Textual support, French
Record number: 67, Textual support number: 1 DEF
Nom générique des produits de substitution d’un métal à l'atome d’hydrogène voisin de la triple liaison des carbures acétyliniques vrais et plus particulièrement de l'acétylène. 1, record 67, French, - ac%C3%A9tylure
Record 67, Spanish
Record 67, Campo(s) temático(s)
- Elementos y compuestos químicos
Record 67, Main entry term, Spanish
- acetiluro
1, record 67, Spanish, acetiluro
correct, masculine noun
Record 67, Abbreviations, Spanish
Record 67, Synonyms, Spanish
Record 67, Textual support, Spanish
Record 68 - internal organization data 2000-05-15
Record 68, English
Record 68, Subject field(s)
- Textile Industries
- Synthetic Fabrics
- Chemical Elements and Compounds
Record 68, Main entry term, English
- pyridinium
1, record 68, English, pyridinium
correct
Record 68, Abbreviations, English
Record 68, Synonyms, English
Record 68, Textual support, English
Record 68, French
Record 68, Domaine(s)
- Industries du textile
- Textiles artificiels et synthétiques
- Éléments et composés chimiques
Record 68, Main entry term, French
- pyridinium
1, record 68, French, pyridinium
correct, masculine noun
Record 68, Abbreviations, French
Record 68, Synonyms, French
Record 68, Textual support, French
Record number: 68, Textual support number: 1 DEF
Cation monovalent correspondant à la pyridine(l'azote devenu pentavalent, porte un atome d’hydrogène et une valence libre). 2, record 68, French, - pyridinium
Record 68, Spanish
Record 68, Textual support, Spanish
Record 69 - internal organization data 1998-02-05
Record 69, English
Record 69, Subject field(s)
- Chemistry
Record 69, Main entry term, English
- quasi-molecular ion
1, record 69, English, quasi%2Dmolecular%20ion
correct, obsolete
Record 69, Abbreviations, English
Record 69, Synonyms, English
Record 69, Textual support, English
Record number: 69, Textual support number: 1 DEF
[In mass spectrometry], a protonated molecular ion or an ion formed from a molecular ion by loss of a hydrogen atom. 1, record 69, English, - quasi%2Dmolecular%20ion
Record 69, French
Record 69, Domaine(s)
- Chimie
Record 69, Main entry term, French
- ion quasi-moléculaire
1, record 69, French, ion%20quasi%2Dmol%C3%A9culaire
correct, masculine noun, obsolete
Record 69, Abbreviations, French
Record 69, Synonyms, French
Record 69, Textual support, French
Record number: 69, Textual support number: 1 DEF
[En spectrométrie de masse], [...] ion moléculaire protoné ou [...] ion formé à partir d’un ion moléculaire par perte d’un atome d’hydrogène. 1, record 69, French, - ion%20quasi%2Dmol%C3%A9culaire
Record 69, Spanish
Record 69, Textual support, Spanish
Record 70 - internal organization data 1996-12-04
Record 70, English
Record 70, Subject field(s)
- Chemistry
- Atomic Physics
Record 70, Main entry term, English
- tritium unit
1, record 70, English, tritium%20unit
correct
Record 70, Abbreviations, English
Record 70, Synonyms, English
Record 70, Textual support, English
Record number: 70, Textual support number: 1 DEF
Unit used to express tritium concentrations. One tritium unit is a concentration of one tritium atom in 1018 hydrogen atoms. 1, record 70, English, - tritium%20unit
Record 70, French
Record 70, Domaine(s)
- Chimie
- Physique atomique
Record 70, Main entry term, French
- unité de tritium
1, record 70, French, unit%C3%A9%20de%20tritium
correct, feminine noun
Record 70, Abbreviations, French
Record 70, Synonyms, French
Record 70, Textual support, French
Record number: 70, Textual support number: 1 DEF
Unité utilisée pour exprimer la concentration de tritium. Une unité de tritium correspond à une concentration d’un atome de tritium pour 1018 atomes d’hydrogène. 1, record 70, French, - unit%C3%A9%20de%20tritium
Record 70, Spanish
Record 70, Campo(s) temático(s)
- Química
- Física atómica
Record 70, Main entry term, Spanish
- unidad de tritio
1, record 70, Spanish, unidad%20de%20tritio
feminine noun
Record 70, Abbreviations, Spanish
- u.t.
Record 70, Synonyms, Spanish
Record 70, Textual support, Spanish
Record number: 70, Textual support number: 1 DEF
Unidad utilizada para expresar concentración de tritio. Una unidad de tritio corresponde a una concentración de un átomo de tritio en 1018 átomos de hidrógeno. 1, record 70, Spanish, - unidad%20de%20tritio
Record 71 - internal organization data 1996-11-21
Record 71, English
Record 71, Subject field(s)
- Chemistry
Record 71, Main entry term, English
- bridged carbocation
1, record 71, English, bridged%20carbocation
correct
Record 71, Abbreviations, English
Record 71, Synonyms, English
Record 71, Textual support, English
Record number: 71, Textual support number: 1 DEF
A carbocation (real or hypothetical) in which there are two (or more) carbon atoms that could in alternative Lewis formulae be designated as carbenium centres but which is instead represented by a structure in which a group (a hydrogen atom or a hydrocarbon residue, possibly with substituents in non-involved positions) bridges these potential carbenium centres. The bridging group thereby delocalizes the cationic charge. 1, record 71, English, - bridged%20carbocation
Record 71, French
Record 71, Domaine(s)
- Chimie
Record 71, Main entry term, French
- carbocation ponté
1, record 71, French, carbocation%20pont%C3%A9
correct, masculine noun
Record 71, Abbreviations, French
Record 71, Synonyms, French
Record 71, Textual support, French
Record number: 71, Textual support number: 1 DEF
Carbocation, réel ou hypothétique, ayant deux ou plusieurs atomes de carbone qui seraient appelés centres carbénium si le carbocation était décrit par deux ou plusieurs formules de Lewis, mais qui, au contraire, est représenté par une structure dans laquelle un groupe(un atome d’hydrogène ou un résidu hydrocarboné portant éventuellement des substituants dans des positions autres que celle de l'atome pont) agit comme pont entre ces divers centres carbénium potentiels. Le groupe en pont délocalise donc la charge positive. 1, record 71, French, - carbocation%20pont%C3%A9
Record number: 71, Textual support number: 1 OBS
On peut distinguer les «carbocations pontés ayant un nombre suffisant d’électrons» des «carbocations pontés déficients en électrons». Pour les premiers, on peut citer à titre d’exemples les ions pontés [...] dont le nom trivial est «ion phénonium»; ils sont classés sans ambiguïtés parmi les ions carbénium. Par contre, ceux de la deuxième catégorie impliquent nécessairement des liaisons à trois centres; [...] 1, record 71, French, - carbocation%20pont%C3%A9
Record 71, Spanish
Record 71, Textual support, Spanish
Record 72 - internal organization data 1996-10-11
Record 72, English
Record 72, Subject field(s)
- Chemical Elements and Compounds
Record 72, Main entry term, English
- ipso-attack
1, record 72, English, ipso%2Dattack
correct
Record 72, Abbreviations, English
Record 72, Synonyms, English
Record 72, Textual support, English
Record number: 72, Textual support number: 1 DEF
The attachment of an entering group to a position in an aromatic compound already carrying a substituent group (other than hydrogen). The entering group may displace that substituent group but may also itself be expelled or migrate to a different position in a subsequent step. ... 1, record 72, English, - ipso%2Dattack
Record 72, French
Record 72, Domaine(s)
- Éléments et composés chimiques
Record 72, Main entry term, French
- attaque-ipso
1, record 72, French, attaque%2Dipso
correct, feminine noun
Record 72, Abbreviations, French
Record 72, Synonyms, French
Record 72, Textual support, French
Record number: 72, Textual support number: 1 DEF
Fixation d’un groupe entrant en une position d’un composé aromatique déjà substituée par un groupe ou par un atome différent de celui d’hydrogène. Le groupe fixé peut déplacer le substituant, mais il peut aussi être expulsé ou migrer vers une position différente au cours d’une étape ultérieure. [...] 1, record 72, French, - attaque%2Dipso
Record 72, Spanish
Record 72, Textual support, Spanish
Record 73 - internal organization data 1996-10-11
Record 73, English
Record 73, Subject field(s)
- Chemistry
Record 73, Main entry term, English
- apo-
1, record 73, English, apo%2D
correct
Record 73, Abbreviations, English
Record 73, Synonyms, English
Record 73, Textual support, English
Record number: 73, Textual support number: 1 DEF
In carotenoid nomenclature, an unitalicized prefix, preceded by a locant, used to indicate that all of the molecule beyond the carbon atom corresponding to that locant has been replaced by hydrogen atoms. 2, record 73, English, - apo%2D
Record 73, French
Record 73, Domaine(s)
- Chimie
Record 73, Main entry term, French
- apo-
1, record 73, French, apo%2D
correct
Record 73, Abbreviations, French
Record 73, Synonyms, French
Record 73, Textual support, French
Record number: 73, Textual support number: 1 DEF
Dans la nomenclature des caroténoïdes, un préfixe qui n’ est pas mis en italique, précédé d’un indice et utilisé pour indiquer que toute la partie de la molécule après l'atome de carbone correspondant à l'indice a été remplacé par des atomes d’hydrogène. 1, record 73, French, - apo%2D
Record 73, Spanish
Record 73, Textual support, Spanish
Record 74 - internal organization data 1993-03-01
Record 74, English
Record 74, Subject field(s)
- Chemistry
Record 74, Main entry term, English
Record 74, Abbreviations, English
Record 74, Synonyms, English
Record 74, Textual support, English
Record 74, French
Record 74, Domaine(s)
- Chimie
Record 74, Main entry term, French
- en trans 1, record 74, French, en%20trans
Record 74, Abbreviations, French
Record 74, Synonyms, French
Record 74, Textual support, French
Record number: 74, Textual support number: 1 OBS
Le cholestane est un hydrocarbure saturé de formule C27H48. La fixation de la chaîne latérale en C fait apparaître deux carbones 17-20 centres d’asymétrie. La position de l'atome d’Hydrogène du Carbone 17 par rapport au méthyle du Carbone 20 est en trans pour le cholestane((figure 3). ANA-V7-n3-53 : 228) 1, record 74, French, - en%20trans
Record 74, Spanish
Record 74, Textual support, Spanish
Record 75 - internal organization data 1992-10-30
Record 75, English
Record 75, Subject field(s)
- Chemistry
Record 75, Main entry term, English
- nitrosating agent 1, record 75, English, nitrosating%20agent
Record 75, Abbreviations, English
Record 75, Synonyms, English
Record 75, Textual support, English
Record number: 75, Textual support number: 1 OBS
nitrosate (v.): to introduce the nitroso group into (a compound)...; nitrosation: the process of converting into a nitroso compound. 2, record 75, English, - nitrosating%20agent
Record number: 75, Textual support number: 1 CONT
When an ingredient in this product comes in contact with nitrosating agents, it forms a compound classified as possibly carcinogenic to humans. 1, record 75, English, - nitrosating%20agent
Record 75, French
Record 75, Domaine(s)
- Chimie
Record 75, Main entry term, French
- agent de nitrosation
1, record 75, French, agent%20de%20nitrosation
correct, masculine noun
Record 75, Abbreviations, French
Record 75, Synonyms, French
Record 75, Textual support, French
Record number: 75, Textual support number: 1 CONT
La nitrosation, opération qui consiste à remplacer un atome d’hydrogène d’une molécule organique par le groupement NO est difficile, sinon impossible à réaliser directement.(...) Les corps les plus faciles à nitroser sont les phénols, les amines secondaires, les imines(...) Les agents de nitrosation les plus usuels sont(...) le peroxyde d’azote dimère(...) ou hypoazotide, l'acide nitreux(...), les nitrites(...), les nitrites d’alcoyle, et surtout celui d’amyle(...), les sels de nitrosyle(...) 1, record 75, French, - agent%20de%20nitrosation
Record 75, Spanish
Record 75, Textual support, Spanish
Record 76 - internal organization data 1992-05-13
Record 76, English
Record 76, Subject field(s)
- Chemistry
Record 76, Main entry term, English
- carbon-12
1, record 76, English, carbon%2D12
correct
Record 76, Abbreviations, English
Record 76, Synonyms, English
Record 76, Textual support, English
Record number: 76, Textual support number: 1 OBS
symbol: 12C (the number is a superscript). 2, record 76, English, - carbon%2D12
Record 76, French
Record 76, Domaine(s)
- Chimie
Record 76, Main entry term, French
- carbone 12
1, record 76, French, carbone%2012
masculine noun
Record 76, Abbreviations, French
Record 76, Synonyms, French
Record 76, Textual support, French
Record number: 76, Textual support number: 1 CONT
[...] plusieurs molécules différentes mais de même masse, comme l'hydrure de carbone, composées d’un atome de carbone 12 lié à deux atomes d’hydrogène, ne peuvent être distinguées du carbone 14, par la spectrométrie de masse classique. 1, record 76, French, - carbone%2012
Record 76, Spanish
Record 76, Textual support, Spanish
Record 77 - internal organization data 1990-04-09
Record 77, English
Record 77, Subject field(s)
- Chemical Engineering
Record 77, Main entry term, English
- hydroformylation 1, record 77, English, hydroformylation
Record 77, Abbreviations, English
Record 77, Synonyms, English
Record 77, Textual support, English
Record 77, French
Record 77, Domaine(s)
- Génie chimique
Record 77, Main entry term, French
- hydroformylation
1, record 77, French, hydroformylation
correct, feminine noun
Record 77, Abbreviations, French
Record 77, Synonyms, French
Record 77, Textual support, French
Record number: 77, Textual support number: 1 DEF
Fixation d’un atome d’hydrogène et d’un groupe formyl sur la molécule d’un composé comportant une liaison double par réaction avec l'hydrogène et le monoxyde de carbone. 1, record 77, French, - hydroformylation
Record 77, Spanish
Record 77, Campo(s) temático(s)
- Ingenieria química
Record 77, Main entry term, Spanish
- hidroformilación 1, record 77, Spanish, hidroformilaci%C3%B3n
Record 77, Abbreviations, Spanish
Record 77, Synonyms, Spanish
Record 77, Textual support, Spanish
Record 78 - internal organization data 1986-10-08
Record 78, English
Record 78, Subject field(s)
- Astrochemistry and Cosmochemistry
- Astronomy
Record 78, Main entry term, English
- Lyman series
1, record 78, English, Lyman%20series
correct
Record 78, Abbreviations, English
Record 78, Synonyms, English
Record 78, Textual support, English
Record number: 78, Textual support number: 1 CONT
Whenever an electron makes a transition to the ground state of hydrogen, for example, there is given off a photon of sufficient energy to place it in the ultraviolet region of the spectrum. All such transitions from any higher energy level to the ground state of hydrogen constitute a series of spectral lines in the ultraviolet, called the "Lyman series" (...) 2, record 78, English, - Lyman%20series
Record 78, French
Record 78, Domaine(s)
- Astrochimie et cosmochimie
- Astronomie
Record 78, Main entry term, French
- série de Lyman
1, record 78, French, s%C3%A9rie%20de%20Lyman
correct, feminine noun
Record 78, Abbreviations, French
Record 78, Synonyms, French
Record 78, Textual support, French
Record number: 78, Textual support number: 1 DEF
(...) ensemble de raies spectrales produites par un atome passant de l’état fondamental aux niveaux supérieurs. 2, record 78, French, - s%C3%A9rie%20de%20Lyman
Record number: 78, Textual support number: 1 CONT
Les raies les plus intenses de tous les éléments appartiennent généralement à la série principale et résultent de la transition au niveau le plus profond, fondamental de l'atome. Ceci est dû au fait que l'électron de l'atome a tendance à reprendre son état fondamental à énergie potentielle minimale. La série principale de l'hydrogène appelée "série de Lyman"(...) se situe tout entière dans l'ultraviolet lointain(...) 3, record 78, French, - s%C3%A9rie%20de%20Lyman
Record 78, Spanish
Record 78, Textual support, Spanish
Record 79 - internal organization data 1984-11-07
Record 79, English
Record 79, Subject field(s)
- Chemical Elements and Compounds
Record 79, Main entry term, English
- sulfonic acid
1, record 79, English, sulfonic%20acid
correct
Record 79, Abbreviations, English
Record 79, Synonyms, English
Record 79, Textual support, English
Record number: 79, Textual support number: 1 DEF
A compound with the radical - SO2OH, derived by the sulfuric acid replacement of a hydrogen atom; for example, conversion of benzene, C6H6, to the water - soluble benzenesulfonic acid, C6H5SO3H, by treatment with sulfuric acid; used to make dyes and drugs. 2, record 79, English, - sulfonic%20acid
Record 79, French
Record 79, Domaine(s)
- Éléments et composés chimiques
Record 79, Main entry term, French
- acide sulfonique
1, record 79, French, acide%20sulfonique
correct, masculine noun
Record 79, Abbreviations, French
Record 79, Synonyms, French
- dérivé sulfoné 1, record 79, French, d%C3%A9riv%C3%A9%20sulfon%C3%A9
correct, masculine noun
Record 79, Textual support, French
Record number: 79, Textual support number: 1 CONT
sulfoné. Se dit des dérivés des corps organiques, appelés aussi acides sulfoniques, qui renferment le radical univalent-SO2-OH.(...) Les dérivés sulfonés(...) se forment en série aromatique avec la plus grande facilité, la fixation du radical SO3H s’effectuant sur le noyau par substitution à un atome d’hydrogène. 1, record 79, French, - acide%20sulfonique
Record 79, Spanish
Record 79, Textual support, Spanish
Record 80 - internal organization data 1982-08-10
Record 80, English
Record 80, Subject field(s)
- Chemistry
- Electrolysis (Electrokinetics)
- Electrochemistry
Record 80, Main entry term, English
- proton donor
1, record 80, English, proton%20donor
correct
Record 80, Abbreviations, English
Record 80, Synonyms, English
- donor of protons 2, record 80, English, donor%20of%20protons
correct
Record 80, Textual support, English
Record number: 80, Textual support number: 1 CONT
It is evident that a complex series of chemical reactions occur in the course of precipitation and that a variety of species, which are either proton donors or acceptors, has an influence on the acidity of rain water. 1, record 80, English, - proton%20donor
Record 80, French
Record 80, Domaine(s)
- Chimie
- Électrolyse (Électrocinétique)
- Électrochimie
Record 80, Main entry term, French
- donneur de protons
1, record 80, French, donneur%20de%20protons
correct, masculine noun
Record 80, Abbreviations, French
Record 80, Synonyms, French
Record 80, Textual support, French
Record number: 80, Textual support number: 1 CONT
L'ion hydrogène H+, ou proton, est le noyau de l'atome d’hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. Il s’associe en effet à une molécule d’eau, qui joue le rôle de base(accepteur de protons), pour former l'ion hydronium H3O+, ou ion hydrogène hydraté(...). L'eau peut jouer aussi le rôle d’acide(donneur de protons)(...) 1, record 80, French, - donneur%20de%20protons
Record 80, Spanish
Record 80, Textual support, Spanish
Record 81 - internal organization data 1982-08-10
Record 81, English
Record 81, Subject field(s)
- Chemistry
Record 81, Main entry term, English
- proton acceptor
1, record 81, English, proton%20acceptor
correct
Record 81, Abbreviations, English
Record 81, Synonyms, English
- acceptor of protons 2, record 81, English, acceptor%20of%20protons
correct
Record 81, Textual support, English
Record number: 81, Textual support number: 1 CONT
When titration is considered for an entire watershed, as may be the case from sustained long-term atmospheric acid inputs, the same buffering processes can occur. However, the reaction is much more heterogeneous in a watershed, and the total quantity and variety of proton acceptor is greater. 1, record 81, English, - proton%20acceptor
Record 81, French
Record 81, Domaine(s)
- Chimie
Record 81, Main entry term, French
- accepteur de protons
1, record 81, French, accepteur%20de%20protons
correct, masculine noun
Record 81, Abbreviations, French
Record 81, Synonyms, French
Record 81, Textual support, French
Record number: 81, Textual support number: 1 CONT
L'ion hydrogène H, ou proton, est le noyau de l'atome d’hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. Il s’associe en effet à une molécule d’eau, qui joue le rôle de base(accepteur de protons), pour former l'ion hydronium(H3O+, ou ion hydrogène hydraté(...). L'eau peut jouer aussi le rôle d’acide(donneur de protons)(...) 1, record 81, French, - accepteur%20de%20protons
Record 81, Spanish
Record 81, Textual support, Spanish
Record 82 - internal organization data 1982-08-05
Record 82, English
Record 82, Subject field(s)
- Chemistry
Record 82, Main entry term, English
- free proton
1, record 82, English, free%20proton
correct
Record 82, Abbreviations, English
Record 82, Synonyms, English
- proton in free state 2, record 82, English, proton%20in%20free%20state
correct
Record 82, Textual support, English
Record number: 82, Textual support number: 1 CONT
The equation [in which A and B + H[plus] are involved in a reversible chemical reaction], used in the ... Bronsted-Lowry definition, does not represent a reaction that can be observed in practice, since the free proton, H[plus]+, can be observed only in gaseous systems at low pressures. In solution, the proton always is attached to some other species, commonly a solvent molecule. 1, record 82, English, - free%20proton
Record 82, French
Record 82, Domaine(s)
- Chimie
Record 82, Main entry term, French
- proton à l’état libre
1, record 82, French, proton%20%C3%A0%20l%26rsquo%3B%C3%A9tat%20libre
correct, masculine noun
Record 82, Abbreviations, French
Record 82, Synonyms, French
- proton libre 2, record 82, French, proton%20libre
correct, masculine noun
- proton disponible 2, record 82, French, proton%20disponible
correct, masculine noun
Record 82, Textual support, French
Record number: 82, Textual support number: 1 CONT
L'ion hydrogène H[ plus], ou proton, est le noyau de l'atome d’hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. 1, record 82, French, - proton%20%C3%A0%20l%26rsquo%3B%C3%A9tat%20libre
Record 82, Spanish
Record 82, Textual support, Spanish
Record 83 - internal organization data 1977-08-29
Record 83, English
Record 83, Subject field(s)
- Astronomy
Record 83, Main entry term, English
- B-type stars
1, record 83, English, B%2Dtype%20stars
correct
Record 83, Abbreviations, English
Record 83, Synonyms, English
Record 83, Textual support, English
Record number: 83, Textual support number: 1 OBS
The B-type stars have a temperature of about 15,000 °K at which the hydrogen atoms start to become ionized and the lines of the Balmer series thus begin to decrease in strength. The lines of neutral helium appear, as well as those of ionized oxygen and carbon. 1, record 83, English, - B%2Dtype%20stars
Record 83, French
Record 83, Domaine(s)
- Astronomie
Record 83, Main entry term, French
- étoile B
1, record 83, French, %C3%A9toile%20B
correct
Record 83, Abbreviations, French
Record 83, Synonyms, French
Record 83, Textual support, French
Record number: 83, Textual support number: 1 OBS
Les étoiles(...) B, caractérisées(...) par les raies d’absorption(...) de l'atome neutre He, montrent aussi les raies de l'hydrogène en absorption et quelquefois en émission.(...) les étoiles B(...) sont très blanches(...) 1, record 83, French, - %C3%A9toile%20B
Record 83, Spanish
Record 83, Textual support, Spanish
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