TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An off-white to pale yellow heterocyclic organic compound formed by replacing the hydrogen in position 4(or 5) of imidazole by a methyl group.  5, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 1 CONT

4-methylimidazole (4-MEI) is a compound used to make certain pharmaceuticals, photographic chemicals, dyes and pigments, cleaning and agricultural chemicals, and rubber products. 4-MEI is formed during the production of certain caramel coloring agents used in many food and drink products. It may also be formed during the cooking, roasting, or other processing of some foods and beverages. ... Studies published in 2007 by the [U.S.] federal government’s National Toxicology Program showed that long-term exposure to 4-MEI resulted in increases in lung cancer in male and female mice. These findings were the basis for the addition of 4-MEI to California’s Proposition 65 list of carcinogens.  6, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 2 CONT

2-methylimidazole and 4-methylimidazole are intermediate/starting materials or components in the manufacture of pharmaceuticals, photographic and photothermographic chemicals, dyes and pigments, agricultural chemicals, and rubber. These chemicals have been identified as undesirable by-products in several foods and have been detected in mainstream and sidestream tobacco smoke. The National Cancer Institute nominated 2- and 4-methylimidazole as candidates for toxicity and carcinogenicity studies. Toxicity studies were carried out in male and female F344/N rats and ...  7, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 3 CONT

Concern has arisen about the presence of 4-MEI in caramel color (which is the most-used food and beverage coloring) ... Dark beers and common brands of cola drinks may contain ...  2, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 4 CONT

... Since imidazole also exists in tautomeric forms, either of the nitrogen atoms can bear the hydrogen atom, the two nitrogens become indistinguishable and the numbering becomes rather complex for mono-substituted imidazoles. As a consequence of this, 4-methylimidazole is identical with 5-methylimidazole and, depending on the position of the imino hydrogen, such a compound may be designated either 4-or 5-methylimidazole. As only one substance that may be a single tautomer or an equilibrium mixture is known, it would be incorrect to call it eithier 4-or 5-methylimidazole. Such a compound is instead designated as 4(5)-methylimidazole.  8, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 1 OBS

4(5)-methylimidazole; 4(or 5)-methylimidazole; 5-methylimidazole; 5-methyl-1H-imidazole: 4-methylimidazole and 5-methylimidazole are tautomers (structural isomers that are readily interconvertible) and are therefore usually considered to be synonymous (i.e. considered to be the same chemical compound). They have the same molecular formula and CAS Registry Number (CAS: Chemical Abstracts Service).  5, record 1, English, - 4%2Dmethylimidazole

Record number: 1, Textual support number: 2 OBS

Chemical formulas: C₄H₆N₂ or H₃C-C₃H₃N₂  5, record 1, English, - 4%2Dmethylimidazole

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Composé chimique hétérocyclique de couleur blanc cassé à jaune pâle, formé en remplaçant l'hydrogène en position 4 (ou 5) de l'imidazole par un groupe méthyle.  4, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record number: 1, Textual support number: 1 OBS

Considéré comme étant probablement cancérigène, on retrouve ce produit lors de la fabrication de colorants caramel présents dans beaucoup d'aliments et de boissons (p. ex. boissons à base de cola, bières brunes) et à la suite du rôtissage d'aliments (p. ex. café et viande).  4, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record number: 1, Textual support number: 2 OBS

Il sert à fabriquer des produits pharmaceutiques, des produits pour le nettoyage, des produits utilisés en photographie et en agriculture, des teintures et des pigments, et des produits à base de caoutchouc.  4, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record number: 1, Textual support number: 3 OBS

4(ou 5)-méthylimidazole; 5-méthyl-1H-imidazole; 5-méthylimidazole : Le 4-méthylimidazole et le 5-méthylimidazole sont des tautomères (isomères interconvertibles) et sont donc souvent considérés comme étant le même composé chimique.  4, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record number: 1, Textual support number: 4 OBS

méthyl-4 iminazole : «Imidazole» s'écrit également «iminazole».  5, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record number: 1, Textual support number: 5 OBS

Formules chimiques : C₄H₆N₂ ou H₃C-C₃H₃N₂ ou CH₃-C₃H₃N₂  4, record 1, French, - 4%2Dm%C3%A9thylimidazole

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A compound of hydrochloric acid used especially with the names of organic bases for convenience in naming salts.  4, record 2, English, - hydrochloride

Record number: 2, Textual support number: 1 OBS

Example: The reaction of pyridine (C₅H₅N) with hydrochloric acid (HCl) yields pyridine hydrochloride (C₅H₅N·HCl). Other examples: lysine hydrochloride and arginine hydrochloride.  5, record 2, English, - hydrochloride

Record number: 2, Textual support number: 2 OBS

Distinguished from "chloride."  4, record 2, English, - hydrochloride

Record number: 2, Textual support number: 3 OBS

HCl : This term designates hydrogen chloride(a compound having the chemical formula HCl) or hydrochloric acid(a solution of hydrogen chloride in water, and also having the chemical formula HCl).  5, record 2, English, - hydrochloride

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Produit d'addition de l'acide chlorhydrique [HCl] avec une base azotée ou phosphorée (il s'agit alors d'un sel) ou avec un composé renfermant une liaison multiple (il s'agit alors d'un composé organique chloré).  3, record 2, French, - chlorhydrate

Record number: 2, Textual support number: 1 OBS

chlorhydrate; hydrochlorure : Le terme «chlorhydrate» est un dérivé d'«acide chlorhydrique»; la terminaison en «-ate» est correcte ici. Une terminaison en «-ure» donnerait «chlorhydrure», ce qui est inacceptable (notons que «chlorhydrique» ne peut donner «hydrochlorure»); la règle est à l'effet de donner la terminaison «-ure» (en anglais : «-ide») aux anions (chargés négativement) monoatomiques, comme Cl⁰, et la terminaison «-ate» aux anions polyatomiques, dont HCl, qui porte le nom d'un anion sans en être un. Conclusion : la forme française «hydrochlorure» est à proscrire.  2, record 2, French, - chlorhydrate

Record number: 2, Textual support number: 2 OBS

Exemples : chlorhydrate d'ammonium (NH₄Cl), chlorhydrate d'arginine et chlorhydrate de lysine.  4, record 2, French, - chlorhydrate

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Sal derivada del ácido clorhídrico y de una base nitrogenada.  4, record 2, Spanish, - clorhidrato

Record number: 2, Textual support number: 1 OBS

Aunque cada vez se ven más las formas "hidroclorida" e hidrocloruro (esta última ya con carácter oficial en la nomenclatura química), la forma tradicional en español era clorhidrato.  2, record 2, Spanish, - clorhidrato

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A substance which introduces an alkyl radical into a compound in place of a hydrogen atom.  2, record 3, English, - alkylating%20agent

Record number: 3, Textual support number: 1 CONT

Alkylating agents contain alkyl radicals that attach themselves to the molecules of protein, nucleic acids, and amino acids in cells. Among the alkylating agents are the nitrogen mustards, ... the ethylenimines ... and the alkyl sulfonates ...  3, record 3, English, - alkylating%20agent

Record number: 3, Textual support number: 2 CONT

Cancer chemotherapy is an increasingly important aspect of drug treatment. Alkylating agents (that work by impairing cell division) and antimetabolites ... are used cytotoxically to attack malignant cells.  3, record 3, English, - alkylating%20agent

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Substance synthétique, utilisée dans la chimiothérapie du cancer et présentant 2 ou 3 chaînes de la série alcoyle, qui dénature les nucléoprotéines et provoque une altération du noyau cellulaire et des chromosomes.  5, record 3, French, - alcoylant

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

molecular formula: C₁₅H₁₄Cl₃N₅  3, record 4, English, - robenidine%20hydrochloride

Record number: 4, Textual support number: 2 OBS

robenide HCl : The use of "HCl" in this designation may lead to confusion, as this abbreviation designates hydrogen chloride(a compound having the chemical formula HCl) or hydrochloric acid(a solution of hydrogen chloride in water, and also having the chemical formula HCl).  3, record 4, English, - robenidine%20hydrochloride

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

formule moléculaire brute : C₁₅H₁₄Cl₃N₅  2, record 4, French, - chlorhydrate%20de%20rob%C3%A9nidine

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A compound derived from a hydrocarbon by replacing one or more hydrogen atoms with fluorine atoms.  7, record 5, English, - hydridofluoridocarbon

Record number: 5, Textual support number: 1 CONT

HFCs [Hydrofluorocarbons] are produced synthetically and are used primarily as refrigerants. They became widely used for this purpose beginning in the late 1980s, with the introduction of the Montreal Protocol, which phased out the use of chemicals such as halons and chlorofluorocarbons (CFCs) that contribute to the depletion of Earth’s ozone layer. However, while HFCs have an ozone depletion potential of zero, they are potent greenhouse gases, and thus their manufacture and use became increasingly regulated in the 21st century.  8, record 5, English, - hydridofluoridocarbon

Record number: 5, Textual support number: 1 OBS

hydridofluoridocarbon: form recommended by the International Union of Pure and Applied Chemistry (IUPAC); however, it does not seem to be commonly used.  9, record 5, English, - hydridofluoridocarbon

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Composé dérivé d'un hydrocarbure où un ou plusieurs atomes d'hydrogène sont remplacés par des atomes de fluor.  3, record 5, French, - hydrurofluorurocarbone

Record number: 5, Textual support number: 1 OBS

hydrurofluorurocarbone : forme recommandée par l'Union internationale de chimie pure et appliquée (UICPA); toutefois, elle ne semble pas être passée dans l'usage.  3, record 5, French, - hydrurofluorurocarbone

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 CONT

Los hidrofluorocarburos (HFC) son un grupo de sustancias que contienen átomos de carbono, flúor e hidrógeno […]. Son generalmente gases incoloros e inodoros a temperatura ambiente, y la mayoría de ellos presentan una gran estabilidad química […]. Generalmente se usan como sustitutos de los CFC (clorofluorocarburos) y de los HCFC (hidroclorofluorocarburos), como refrigerantes en equipos de aire acondicionado y actúan como agente propulsor en los aerosoles y como solventes.  2, record 5, Spanish, - hidrofluorocarburo

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

[An] organic compound composed of carbon, fluorine, and chlorine [and sometimes of hydrogen].  5, record 6, English, - chloridofluoridocarbon

Record number: 6, Textual support number: 1 CONT

Because of a growing concern over stratospheric ozone depletion and its attendant dangers, a ban was imposed on the use of CFCs in aerosol-spray dispensers in the late 1970s by the United States, Canada, and the Scandinavian countries.  5, record 6, English, - chloridofluoridocarbon

Record number: 6, Textual support number: 1 OBS

chloridofluoridocarbon: form recommended by the International Union of Pure and Applied Chemistry (IUPAC); however, it does not seem to be commonly used.  6, record 6, English, - chloridofluoridocarbon

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Composé organique formé d'atomes de carbone, de fluor et de chlore et parfois d'hydrogène.  6, record 6, French, - chlorurofluorurocarbone

Record number: 6, Textual support number: 1 OBS

chlorurofluorurocarbone : forme recommandée par l'Union internationale de chimie pure et appliquée (UICPA); toutefois, elle ne semble pas être passée dans l'usage.  6, record 6, French, - chlorurofluorurocarbone

Record 6,  Textual support,  Spanish

Record number: 6, Textual support number: 1 CONT

Los CFC [clorofluorocarburos] y HCFC [hidroclorofluorocarburos] son compuestos derivados de los hidrocarburos (hydrocarbon en inglés) por sustitución de todos o algunos de sus átomos de hidrógeno con átomos de cloro y de flúor. Su nombre, lógicamente, debe reflejar esta sustitución. Los nombres de los compuestos orgánicos con átomos de cloro o de flúor incluyen el prefijo «cloro» o «fluoro». Luego clorofluorocarburo e hidroclorofluorocarburo son las mejores posibilidades.  4, record 6, Spanish, - clorofluorocarburo

Record number: 6, Textual support number: 2 CONT

El clorofluorocarburo, clorofluorocarbono o clorofluorocarbonados (denominados también CFC) es cada uno de los derivados de los hidrocarburos saturados obtenidos mediante la sustitución de átomos de hidrógeno por átomos de flúor y/o cloro principalmente. Debido a su alta estabilidad físico-química y su nula toxicidad han sido muy usados como líquidos refrigerantes, agentes extintores y propelentes para aerosoles. [...] La fabricación y empleo de CFC fueron prohibidos por el protocolo de Montreal, debido a que los CFC destruyen la capa de ozono.  5, record 6, Spanish, - clorofluorocarburo

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

An organic compound of hydrogen and carbon, whose density, boiling point, and freezing point increase as their molecular weight increases.  3, record 7, English, - hydrocarbon

Record number: 7, Textual support number: 1 OBS

Four hydrocarbons are contributing to the global warming: methane (CH₄) is a key greenhouse gas; ethane (C₂H₆), propane (C₃H₈) and acetylene (C₂H₂ are lesser greenhouse gases.  4, record 7, English, - hydrocarbon

Record number: 7, Textual support number: 2 OBS

hydrocarbon; HC: term and abbreviation standardized by Environment Canada and the Translation Bureau for use in the Black Carbon Inventory and the Air Pollutant Emission Inventory Report.  5, record 7, English, - hydrocarbon

Record number: 7, Textual support number: 3 OBS

hydrocarbon; HC: term and abbreviation officially approved by the Lexicon Project Committee (New Brunswick).  6, record 7, English, - hydrocarbon

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Composé organique ne contenant que du carbone et de l'hydrogène.  4, record 7, French, - hydrocarbure

Record number: 7, Textual support number: 1 OBS

Les hydrocarbures contribuent largement au réchauffement climatique. Le méthane, après le dioxyde de carbone, est le principal gaz à effet de serre. Mentionnons également le propane, l'éthane et l'acétylène.  5, record 7, French, - hydrocarbure

Record number: 7, Textual support number: 2 OBS

hydrocarbure; HC : terme et abréviation normalisés par Environnement Canada et le Bureau de la traduction dans le cadre de l'inventaire de carbone noir et de l'Inventaire des émissions de polluants atmosphériques.  6, record 7, French, - hydrocarbure

Record number: 7, Textual support number: 3 OBS

hydrocarbure : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).  4, record 7, French, - hydrocarbure

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Compuesto orgánico consistente exclusivamente en elementos de carbono e hidrógeno.  3, record 7, Spanish, - hidrocarburo

Record number: 7, Textual support number: 1 CONT

Las combinaciones del carbono con el hidrógeno son muy numerosas, variadas e importantes. Ciertos hidrocarburos son gaseosos, como el metano; otros son líquidos, como el benceno, y otros sólidos, cual el naftaleno.  4, record 7, Spanish, - hidrocarburo

Record number: 7, Textual support number: 2 CONT

Los CFC [clorofluorocarburos] y HCFC [hidroclorofluorocarburos] son compuestos derivados de los hidrocarburos [...] por sustitución de todos o algunos de sus átomos de hidrógeno con átomos de cloro y de flúor.  5, record 7, Spanish, - hidrocarburo

Record number: 7, Textual support number: 1 OBS

Se obtiene principalmente del petróleo, del alquitrán de hulla y de fuentes vegetales.  3, record 7, Spanish, - hidrocarburo

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

As the name suggests, TPUs are thermoplastic resins.... Most TPUs on the market today are synthesized using at least three different types of monomers : a polymeric compound containing a Tschugaeff-Zerewitinoff hydrogen, a diisocyanate, and a chain extender.  2, record 8, English, - thermoplastic%20polyurethane

Record number: 8, Textual support number: 1 OBS

thermoplastic polyurethane; TPUR: term and abbreviation officially approved by the Lexicon Project Committee (New Brunswick).  4, record 8, English, - thermoplastic%20polyurethane

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Les polyuréthannes thermoplastiques sont des polymères linéaires avec des groupes uréthannes alternés avec des polyols. [...] En élevant la température, les liaisons entre chaînes sont rompues, permettant une mise en œuvre semblable à celles des thermoplastiques : (injection, extrusion, soufflage, thermoformage...). Des solvants peuvent aussi rompre ces liaisons permettant de préparer des solutions pour colles ou revêtements, et même extrusion de fils.  3, record 8, French, - polyur%C3%A9thanne%20thermoplastique

Record number: 8, Textual support number: 1 OBS

polyuréthanne thermoplastique; polyuréthane thermoplastique; TPUR : termes et abréviation uniformisés par le Comité du projet de lexiques (Nouveau-Brunswick).  4, record 8, French, - polyur%C3%A9thanne%20thermoplastique

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

One-thousandth of the equivalent weight of a substance.  2, record 9, English, - milliequivalent

Record number: 9, Textual support number: 1 OBS

Equivalent weight... : The weight in grams of an element or radical which will combine with or replace 1. 008 grams of hydrogen; atomic weight of an element or radical divided by the valence; the molecular weight of a compound divided by the valence with respect to the particular element or radical involved in the reaction...  4, record 9, English, - milliequivalent

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Concentration d'un ion donné, de masse atomique M et de valence V, obtenue en divisant le chiffre de sa concentration en milligrammes par le rapport M/V.  7, record 9, French, - milli%C3%A9quivalent

Record number: 9, Textual support number: 2 DEF

Produit de la concentration ionique molaire d'une solution (exprimée en millimoles par litre) par la valence de l'ion.  8, record 9, French, - milli%C3%A9quivalent

Record number: 9, Textual support number: 1 OBS

milliéquivalent; mEq : terme et abréviation extraits du «Glossaire de l’environnement» et reproduits avec l’autorisation de l’Organisation de coopération et de développement économiques.  9, record 9, French, - milli%C3%A9quivalent

Record 9,  Textual support,  Spanish

Record number: 9, Textual support number: 1 DEF

Milésima parte del peso equivalente de una sustancia.  2, record 9, Spanish, - miliequivalente

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

[A] chemical compound... having two atoms of hydrogen.  1, record 10, English, - dihydrogen

Record 10,  Textual support,  French

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

A compound containing carbon, one or more halogens, and sometimes hydrogen.  4, record 11, English, - halogenated%20hydrocarbon

Record number: 11, Textual support number: 1 CONT

Hazards of refilling compressed refrigerant (halogenated hydrocarbon) gas cylinders ...  5, record 11, English, - halogenated%20hydrocarbon

Record number: 11, Textual support number: 1 OBS

The lower members of the various homologous series are used as refrigerants, propellant gases, fire-extinguishing agents, and blowing agents for urethane foams. When polymerized, they yield plastics characterized by extreme chemical resistance, high electrical resistivity, and good heat resistance.  4, record 11, English, - halogenated%20hydrocarbon

Record number: 11, Textual support number: 2 OBS

halocarbon: term standardized by Environment Canada and the Translation Bureau for use in the National Inventory Report.  6, record 11, English, - halogenated%20hydrocarbon

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Dérivé d'un hydrocarbure composé de carbone et d'un ou de plusieurs halogènes, ces derniers remplaçant partiellement ou entièrement l'hydrogène.  5, record 11, French, - hydrocarbure%20halog%C3%A9n%C3%A9

Record number: 11, Textual support number: 1 OBS

Les hydrocarbures halogénés comprennent les halométhanes, qui n'ont qu'un seul atome de carbone, et les haloéthanes, qui ont deux atomes de carbone. Contrairement aux composés chlorofluorocarbonés, qui ne contiennent que deux halogènes, le chlore et le fluor, les hydrocarbures halogénés peuvent contenir tous les autres halogènes : brome, iode et astate; cependant ces derniers éléments sont rarement utilisés et c'est pour cette raison qu'on emploie parfois le terme chlorofluorocarbone au sens d'hydrocarbure halogéné.  6, record 11, French, - hydrocarbure%20halog%C3%A9n%C3%A9

Record number: 11, Textual support number: 2 OBS

L'ordre de préséance des termes français devrait être : «hydrocarbure halogéné», «halocarbone» et «halocarbure». Le terme «hydrocarbure halogéné» remplace fort bien le terme «halocarbure» pour traduire le mot anglais «halocarbon». Le terme «halocarbone» qui est meilleur que le terme «halocarbure» est cependant d'usage peu fréquent. Le terme «halocarbure» quoique de forme discutable peut être employé dans un contexte de continuité, particulièrement si le nom était généralement accepté et utilisé antérieurement (par ex. dans un règlement fédéral).  7, record 11, French, - hydrocarbure%20halog%C3%A9n%C3%A9

Record number: 11, Textual support number: 3 OBS

halocarbure : terme normalisé par Environnement Canada et le Bureau de la traduction dans le cadre du Rapport d'inventaire national.  8, record 11, French, - hydrocarbure%20halog%C3%A9n%C3%A9

Record 11,  Textual support,  Spanish

Record number: 11, Textual support number: 1 DEF

Hidrocarburo en el que uno o más de sus átomos de hidrógeno son sustituidos por flúor, cloro, bromo o yodo, lo que incrementa la acción narcótica y anestésica de los hidrocarburos alifáticos. Muchos son tóxicos e inflamables.  2, record 11, Spanish, - hidrocarburo%20halogenado

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

The hypothetical radical of the monocarbon series (CH₃), the base of pyroxylic or wood spirit or pyroligneous naphtha, of formic acid and of a large series of organic compounds.  2, record 12, English, - methyl

Record number: 12, Textual support number: 1 OBS

[also] attrib. and Comb., as methyl compound, radical, etc. ;esp. in names of salts of methyl, e. g. methyl bromide, chloride, hydride. Also prefixed(often without hyphen) to the name of an organic compound to express the addition of methyl to its composition, or the replacement of hydrogen atoms by equivalents of methyl, as in methylacetonamine, methylaniline, methylcarbonic(acid), methyl-codeia, methyluramine, etc.  2, record 12, English, - methyl

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Radical monovalent de formule CH₃-, prototype des radicaux alkyles.  2, record 12, French, - m%C3%A9thyle

Record number: 12, Textual support number: 1 OBS

S'utilise aussi comme préfixe ou en apposition, pour indiquer la présence du méthyle. P. ex. : méthylaniline, bromure de méthyle.  2, record 12, French, - m%C3%A9thyle

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

Karmen reported a hydrogen flame ionization detector sensitive only to compounds containing phosphorus, bromine, chlorine, and iodine. He noted that halogens or phosphorus increased the electrical conductivity of the flame in the presence of a wire, ceramic, or glass probe containing a sodium compound.  1, record 13, English, - probe

Record number: 13, Textual support number: 1 PHR

Glass probe.  2, record 13, English, - probe

Record 13,  Textual support,  French

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

A chemical substance which is formed by the union of elements in definite proportion by weight, with definite structural arrangement, whose molecules consist of unlike atoms and whose constituents cannot be separated by physical means.  3, record 14, English, - compound

Record number: 14, Textual support number: 1 CONT

Water is a compound of oxygen and hydrogen; the benzene ring is characteristic of numerous complex organic compounds.  4, record 14, English, - compound

Record number: 14, Textual support number: 1 OBS

Loosely, [compound also refers to] a product formula (often proprietary) of various types, e.g., pharmaceuticals (a vegetable compound), rubber (a fast-curing compound), etc.  5, record 14, English, - compound

Record number: 14, Textual support number: 1 PHR

Non-UV-absorbing, not strongly ionic compound.  6, record 14, English, - compound

Record number: 14, Textual support number: 2 PHR

Compound to be symmetrically conjugated, to fluoresce.  6, record 14, English, - compound

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Espèce chimique formée par la combinaison de deux ou plusieurs éléments.  3, record 14, French, - compos%C3%A9

Record number: 14, Textual support number: 1 PHR

Composé analysé (en ligne, en différé), désorbé, fixé, ionisable, ionisé.  4, record 14, French, - compos%C3%A9

Record 14,  Textual support,  Spanish

Record number: 14, Textual support number: 1 DEF

Sustancia compuesta de átomos e iones de dos o más elementos en combinación química.  3, record 14, Spanish, - compuesto

Record number: 14, Textual support number: 1 CONT

Un compuesto es una entidad homogénea en la que los elementos tienen proporciones definidas en peso y están representadas por una fórmula química.  3, record 14, Spanish, - compuesto

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

gas hydrate : A special form of solid clathrate compound in which crystal lattice cages or chambers, consisting of host molecules, enclose guest molecules.... The host molecules are water, and the guest molecules may be a variety of gases, including argon, nitrogen, carbon dioxide, hydrogen sulfide, methane, ethane, halogens and other small molecules.  2, record 15, English, - host%20molecule

Record number: 15, Textual support number: 1 OBS

As opposed to "guest molecule."  3, record 15, English, - host%20molecule

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Entité moléculaire dont la structure présente des cavités capables d'inclure des molécules avec lesquelles elle peut former des complexes.  2, record 15, French, - mol%C3%A9cule%20h%C3%B4te

Record number: 15, Textual support number: 1 CONT

Un complexe d'inclusion est une association moléculaire entre une ou plusieurs molécules dont l'une est l'hôte (le récepteur) et l'autre l'invitée (le substrat). La molécule «invitée» est alors encapsulée de façon totale ou partielle dans le récepteur. Les liens entre la molécule hôte et la molécule invitée sont des interactions faibles, ce qui permet une dissociation aisée et douce.  3, record 15, French, - mol%C3%A9cule%20h%C3%B4te

Record number: 15, Textual support number: 1 OBS

molécule hôte : terme et définition publiés au Journal officiel de la République française le 18 avril 2001.  4, record 15, French, - mol%C3%A9cule%20h%C3%B4te

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, 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 16, English, - bonding%20number

Record 16,  Textual support,  French

Record number: 16, 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 16, French, - indice%20de%20valence%20formelle

Record number: 16, 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 16, French, - indice%20de%20valence%20formelle

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

A chemical compound in the form of a light-yellow or greenish-yellow crystalline mass, known to be a strong irritant, whose odor is similar to hydrogen sulfide and which is used as intermediate for lube oil additives, insecticides(chiefly parathion and malathion), flotation agents, safety matches, ignition compounds, and sulfonation.  4, record 17, English, - phosphorus%20pentasulfide

Record number: 17, Textual support number: 1 OBS

Chemical formula: P₂S₅  5, record 17, English, - phosphorus%20pentasulfide

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 OBS

Formule chimique : P₂S₅  2, record 17, French, - pentasulfure%20de%20phosphore

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

A chemical compound in the form of a fuming, colorless liquid(penetrating odor) which is soluble in acetone, alcohol, carbon disulfide, hydrogen sulfide, water(decomposes) ;use : catalyst, analysis(testing for sugar and oxygen) and synthesis.  2, record 18, English, - phosphorus%20tribromide

Record number: 18, Textual support number: 1 OBS

Chemical formula: PBr₃  3, record 18, English, - phosphorus%20tribromide

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 OBS

Formule chimique : PBr₃  2, record 18, French, - tribromure%20de%20phosphore

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

A chemical compound in the form of a colorless liquid, with a geranium-like odor, prevents hydrogen embrittlement of steel, is used as chemical intermediate, corrosion inhibitor, laboratory reagent, solvent stabilizer, soil fumigant.  3, record 19, English, - propargyl%20alcohol

Record number: 19, Textual support number: 1 OBS

Chemical formula: HC:CCH₂OH  4, record 19, English, - propargyl%20alcohol

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 OBS

Formule chimique : HC:CCH₂OH  2, record 19, French, - alcool%20propargylique

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A chemical compound which appears under the form of a colorless to yellow combustible liquid, is derived by Grignard reaction of silicon tetrachloride and hexadecylmagnesium chloride, has irritating properties, evolves hydrogen chloride in the presence of moisture, and is used as an intermediate for silicones.  4, record 20, English, - trichloro%28hexadecyl%29silane

Record number: 20, Textual support number: 1 OBS

hexadecyltrichlorosilane: incorrect form.  1, record 20, English, - trichloro%28hexadecyl%29silane

Record number: 20, Textual support number: 2 OBS

Also known under the commercial designation UN 1781.  4, record 20, English, - trichloro%28hexadecyl%29silane

Record number: 20, Textual support number: 3 OBS

Chemical formula: C₁₆H₃₃Cl₃Si  4, record 20, English, - trichloro%28hexadecyl%29silane

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 OBS

Formule chimique : C₁₆H₃₃Cl₃Si  3, record 20, French, - trichloro%28hexad%C3%A9cyl%29silane

Record 20,  Textual support,  Spanish

Record number: 20, Textual support number: 1 DEF

Líquido de incoloro a amarillo. Se hidroliza con la humedad liberando ácido clorhídrico. Combustible. Muy tóxico e irritante.  1, record 20, Spanish, - hexadeciltriclorosilano

Record number: 20, Textual support number: 1 OBS

Fórmula química: C₁₆H₃₃Cl₃Si  2, record 20, Spanish, - hexadeciltriclorosilano

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

A chemical compound which appears under the form of a flammable, white powder which sometimes turns gray on standing, which is prepared by the reaction of aluminium chloride with lithium hydride, which is used as a reducing agent for over 60 different functional groups, especially for pharmaceuticals, perfumes, and fine organic chemicals, which converts esters, aldehydes, and ketones to alcohols and nitriles to amines, which constitutes a source of hydrogen, and which is used as a propellant and a catalyst in polymerizations.  5, record 21, English, - lithium%20tetrahydridoaluminate

Record number: 21, Textual support number: 1 OBS

lithium aluminum hydride: usual name in the USA; part of the Ingredient Disclosure List of the Hazardous Products Act (Registration SOR/88-64, December 31, 1987); the International Union of Pure and Applied Chemistry (IUPAC) recommends the form "aluminium" rather than "aluminum."  1, record 21, English, - lithium%20tetrahydridoaluminate

Record number: 21, Textual support number: 2 OBS

LAH: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.  1, record 21, English, - lithium%20tetrahydridoaluminate

Record number: 21, Textual support number: 3 OBS

Chemical formula: LiAlH₄ or AlH₄·Li  5, record 21, English, - lithium%20tetrahydridoaluminate

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 OBS

hydrure d'aluminium et de lithium : fait partie de la Liste de divulgation des ingrédients de la Loi sur les produits dangereux (du Canada; enr. DORS s/88-64, 31 déc. 1987).  3, record 21, French, - t%C3%A9trahydruroaluminate%20de%20lithium

Record number: 21, Textual support number: 2 OBS

Formule chimique : LiAlH₄ ou AlH₄·Li  3, record 21, French, - t%C3%A9trahydruroaluminate%20de%20lithium

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 DEF

A chemical compound having the formula LiF or FLi which appears under the form of a fine, white powder, is slightly soluble in water, is soluble in acids, is insoluble in alcohol, derives from the reaction of hydrogen fluoride with lithium carbonate, and is used in metallurgy(welding and soldering flux), ceramics, heat-exchange media, radiation dosimetry, synthetic crystals in infrared and ultraviolet instruments, as a rocket fuel component, a component of fuel for molten salt reactors and in x-ray diffraction.  2, record 22, English, - lithium%20fluoride

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 OBS

Formule chimique : LiF ou FLi  2, record 22, French, - fluorure%20de%20lithium

Record 22,  Textual support,  Spanish

Record number: 22, Textual support number: 1 DEF

Polvo blanco poco soluble en agua, soluble en ácidos, insoluble en alcohol. Muy tóxico e irritante.  1, record 22, Spanish, - fluoruro%20de%20litio

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

A compound... obtained as a greyish white toxic powder by heating barium monoxide in air or oxygen and used chiefly in making hydrogen peroxide and in pyrotechnics.  5, record 23, English, - barium%20peroxide

Record number: 23, Textual support number: 1 OBS

... insoluble in water; used as a bleach and in the glass industry.  6, record 23, English, - barium%20peroxide

Record number: 23, Textual support number: 2 OBS

Exists also as a octahydrate BaO2.8H2O.  7, record 23, English, - barium%20peroxide

Record number: 23, Textual support number: 3 OBS

barium dioxide(2-): The "-" following the number 2 is a superscript which refers to the minus sign.  2, record 23, English, - barium%20peroxide

Record number: 23, Textual support number: 4 OBS

Chemical formula: BaO₂  7, record 23, English, - barium%20peroxide

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 CONT

Chauffé au rouge sombre dans un courant d'oxygène, l'oxyde de baryum se transforme en bioxyde BaO₂, lequel se dissocie à température plus élevée; on s'est jadis servi de cette réaction pour extraire l'oxygène de l'air. Le bioxyde de baryum sert en outre à la préparation de l'eau oxygénée.  4, record 23, French, - peroxyde%20de%20baryum

Record number: 23, Textual support number: 1 OBS

dioxyde(2-) de baryum : Le signe «-» qui suit le chiffre 2 entre parenthèses s'écrit en exposant.  2, record 23, French, - peroxyde%20de%20baryum

Record number: 23, Textual support number: 2 OBS

Formule chimique : BaO₂  5, record 23, French, - peroxyde%20de%20baryum

Record 23,  Textual support,  Spanish

Record number: 23, Textual support number: 1 OBS

Fórmula química: BaO₂  2, record 23, Spanish, - per%C3%B3xido%20de%20bario

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

A chemical compound in the form of a white to gray powder, which evolves hydrogen on contact with water, which is used as a polymerization catalyst, a reducing agent, and in electrolytic coatings on plastics, textiles, fibers and other metals.  3, record 24, English, - aluminium%20hydride

Record number: 24, Textual support number: 1 OBS

The IUPAC (International Union of Pure and Applied Chemistry) recommends the form "aluminium" instead of "aluminum."  1, record 24, English, - aluminium%20hydride

Record number: 24, Textual support number: 2 OBS

Chemical format: AlH₃  4, record 24, English, - aluminium%20hydride

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 OBS

hydrure : Nom générique des combinaisons de l'hydrogène avec les autres corps simples.  2, record 24, French, - hydrure%20d%27aluminium

Record number: 24, Textual support number: 2 OBS

Formule chimique : AlH₃  3, record 24, French, - hydrure%20d%27aluminium

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

A binary compound of hydrogen and oxygen, empirical formula H₂O₂, used mostly in dilute aqueous solutions as an oxidizing agent [and of which the] most remarkable feature is its tendency to decompose readily into water and oxygen, the first instance of contact analysis.  6, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 1 OBS

Use: Bleaching and deodorizing of textiles, wood pulp, hair, fur, etc.; source of organic and inorganic peroxides; pulp and paper industry; plasticizers; rocket fuel; foam rubber; manufacture of glycerol; antichlor; dyeing; electroplating; antiseptic; laboratory reagent; epoxidation, hydroxylation, oxidation, and reduction; viscosity control for starch and cellulose derivatives; refining and cleaning metals; bleaching and oxidizing agent in foods; neutralizing agent in wine distillation; seed disinfectant; substitute for chlorine in water and sewage treatment.  7, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 2 OBS

Also known under a large number of commercial designations, such as: Albone; Hioxyl; Inhibine; Interox; Kastone; Oxydol; Perhydrol (hydroxide peroxide 30%, q.v.); Perone; Peroxan; Superoxol.  8, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 3 OBS

hydrogen peroxide: Refers to the anhydrous form (i.e. "anhydrous hydrogen peroxide"), but the term is also commonly used for hydrogen peroxide solutions (marketed as solutions in water concentrations of 3 to 90% by weight). See also "hydrogen peroxide solution."  9, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 4 OBS

hydrogen peroxide: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).  2, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 5 OBS

peroxide: This term is used in common usage as an abbreviation for "hydrogen peroxide" but must not be considered as a true synonym of this latter term in a systematic sense; it does not correspond to the CAS number for "hydrogen peroxide."  2, record 25, English, - hydrogen%20peroxide

Record number: 25, Textual support number: 6 OBS

Molecular formula: H₂O₂; Structural formula: H—O—O—H  7, record 25, English, - hydrogen%20peroxide

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

[...] espèce chimique [de] formule H₂O₂ [qui] se présente sous la forme d'un liquide bleu pâle sirupeux, qui se solidifie à -0,46 °C et qui est nettement plus dense que l'eau [...]  6, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 1 CONT

On distingue notamment : a) l'eau oxygénée concentrée, solution aqueuse acide contenant 30 % en poids de peroxyde d'hydrogène, utilisée avec précautions contre certaines lésions de la peau; b) l'eau oxygénée officinale, contenant environ 3 % en poids (8 à 12 % en volume) de peroxyde d'hydrogène, utilisée comme hémostatique et comme désinfectant. L'eau oxygénée concentrée à 20 volumes est utilisée pour la décoloration des cheveux.  7, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 2 CONT

On ne peut faire bouillir l'eau oxygénée pure sous la pression atmosphérique normale, car le liquide se décompose auparavant; il est en effet thermodynamiquement instable à la température ordinaire [...]  6, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 1 OBS

On appelle ordinairement eau oxygénée les mélanges d'eau et de peroxyde d'hydrogène.  6, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 2 OBS

peroxyde d'hydrogène : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).  2, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 3 OBS

peroxyde : Ce terme est utilisé dans la vie courante comme abréviation de «peroxyde d'hydrogène», mais n'est pas un synonyme de ce dernier terme au sens strict; ce nom ne correspond pas au numéro CAS (du Chemical Abstracts Service) pour le peroxyde d'hydrogène. La prudence s'impose donc dans son emploi. Voir aussi l'autre fiche pour «peroxyde».  2, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 4 OBS

À une concentration de 30 % il est commercialisé sous le nom de «Perhydrol» (voir aussi cette fiche).  8, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 25, Textual support number: 5 OBS

Formule chimique : H₂O₂  8, record 25, French, - peroxyde%20d%27hydrog%C3%A8ne

Record 25,  Textual support,  Spanish

Record number: 25, Textual support number: 1 OBS

Líquido incoloro, insoluble en alcohol y agua. Las soluciones concentradas son tóxicas e irritantes. Riesgo de explosión. Agente oxidante.  3, record 25, Spanish, - per%C3%B3xido%20de%20hidr%C3%B3geno

Record number: 25, Textual support number: 2 OBS

Fórmula química: H₂O₂  4, record 25, Spanish, - per%C3%B3xido%20de%20hidr%C3%B3geno

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 CONT

clathrates: Cage structures formed by H₂O ice having 8 cavities for each 46 water molecules that can trap large "guest" molecules of nonpolar volatile gases.  2, record 26, English, - guest%20molecule

Record number: 26, Textual support number: 2 CONT

gas hydrate : A special form of solid clathrate compound in which crystal lattice cages or chambers, consisting of host molecules, enclose guest molecules.... Gas hydrates are formed under special temperature and pressure conditions. The host molecules are water, and the guest molecules may be a variety of gases, including argon, nitrogen, carbon dioxide, hydrogen sulfide, methane, ethane, halogens and other small molecules.  3, record 26, English, - guest%20molecule

Record number: 26, Textual support number: 1 OBS

As opposed to "host molecule."  4, record 26, English, - guest%20molecule

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

Molécule logée dans les cavités d'une autre molécule dite «molécule hôte».  2, record 26, French, - mol%C3%A9cule%20invit%C3%A9e

Record number: 26, Textual support number: 1 CONT

Complexe d'inclusion. Un complexe d'inclusion est une association moléculaire entre une ou plusieurs molécules dont l'une est l'hôte (le récepteur) et l'autre l'invitée (le substrat). La molécule «invitée» est alors encapsulée de façon totale ou partielle dans le récepteur. Les liens entre la molécule hôte et la molécule invitée sont des interactions faibles, ce qui permet une dissociation aisée et douce.  3, record 26, French, - mol%C3%A9cule%20invit%C3%A9e

Record number: 26, Textual support number: 1 OBS

molécule incluse : terme et définition publiés au Journal officiel de la République française le 18 avril 2001.  4, record 26, French, - mol%C3%A9cule%20invit%C3%A9e

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

An organic compound of carbon with oxygen and hydrogen in the proportion to form water.  3, record 27, English, - carbohydrate

Record number: 27, 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 27, English, - carbohydrate

Record number: 27, Textual support number: 2 OBS

carbohydrates: Originally, compounds such as aldoses and ketoses, having the stoichiometric formula C_n(H₂O)_n, hence "hydrates of carbon."  4, record 27, English, - carbohydrate

Record number: 27, Textual support number: 3 OBS

[Carbohydrates] are divided into sugars proper ..., grape-sugars or glucoses ..., and amyloses, comprising starch and woody fibre ...  3, record 27, English, - carbohydrate

Record number: 27, 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 27, English, - carbohydrate

Record number: 27, 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 27, English, - carbohydrate

Record 27,  Textual support,  French

Record number: 27, 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 27, French, - hydrate%20de%20carbone

Record number: 27, Textual support number: 1 OBS

hydrates de carbone; carbohydrates. Ces noms tirent leur origine de leur composition chimique : C_n(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 27, French, - hydrate%20de%20carbone

Record number: 27, 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 27, French, - hydrate%20de%20carbone

Record number: 27, Textual support number: 3 OBS

hydrate de carbone : terme surtout utilisé par les chimistes (en relation avec les substances naturelles).  6, record 27, French, - hydrate%20de%20carbone

Record number: 27, Textual support number: 4 OBS

glucide : terme surtout utilisé en biochimie et en chimie alimentaire (en relation avec la matière vivante).  6, record 27, French, - hydrate%20de%20carbone

Record 27,  Textual support,  Spanish

Record number: 27, 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 27, Spanish, - hidrato%20de%20carbono

Record number: 27, 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 27, Spanish, - hidrato%20de%20carbono

Record number: 27, 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 27, Spanish, - hidrato%20de%20carbono

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 DEF

The process of converting an organic compound into its silyl derivative by attachment of trimethylsilyl (or similar organosilicon) groups.  2, record 28, English, - silylation

Record number: 28, Textual support number: 1 CONT

Silylation is the introduction of a(usually) substituted silyl group(R₃Si–) to a molecule. Nearly all functional groups which present a problem in gas chromatogaphic separation(hydroxyl, carboxylic acid, amine, thiol, phosphate) can be derivatized by silylation reagents. It involves the replacement of an acidic hydrogen on the compound with an alkylsilyl group, for example, trimethylsilyl(–SiMe₃).  3, record 28, English, - silylation

Record number: 28, Textual support number: 1 OBS

silyl: The univalent group or radical –SiH₃ ...  4, record 28, English, - silylation

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 DEF

Opération de remplacement d'un groupement hydrogène par un dérivé du silicium comme un triméthylsilyle.  2, record 28, French, - silylation

Record number: 28, Textual support number: 1 CONT

La chromatographie gaz-liquide des composés organiques n’est pas toujours directement réalisable pour des raisons variées telles que polarité des molécules, température d’ébullition trop élevée, interférences de substances dont les temps de rétention sont identiques ou très voisins, etc. Les transformations préalables en esters méthyliques des fonctions acides ou esters, l’acétylation des fonctions hydroxylées ou aminées comptent parmi les techniques d’application courante. La silylation (radical silyle : –SiH₃) mérite également un développement particulier en raison de ses nombreuses applications.  3, record 28, French, - silylation

Record number: 28, Textual support number: 1 OBS

silyl- : Préfixe indiquant la présence dans une molécule du radical silyle.  4, record 28, French, - silylation

Record number: 28, Textual support number: 2 OBS

silyle : Radical monovalent de formule SiH₃.  4, record 28, French, - silylation

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 DEF

A chemical compound which appears under the form of a colorless gas with a disagreeable odour, is derived by pyrolysos of acetone or acetic acid by passing its vapour through a tube at 500-600°C, reacts with ammonia to give acetamide, and is used as an acetylating agent, generally reacting with compounds having an active hydrogen atom and as a starting point for making various commercially important products, especially acetic anhydride and acetate esters.  4, record 29, English, - eth%2D1%2Den%2D1%2Done

Record number: 29, Textual support number: 1 OBS

eth-1-en-1-one: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).  1, record 29, English, - eth%2D1%2Den%2D1%2Done

Record number: 29, Textual support number: 2 OBS

Chemical formula: C₂H₂O or H₂C[double bond]C[double bond]O  4, record 29, English, - eth%2D1%2Den%2D1%2Done

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 DEF

Désignation du terme le plus simple CH₂=C=O ou C₂H₂O.  3, record 29, French, - %C3%A9th%2D1%2D%C3%A9n%2D1%2Done

Record number: 29, Textual support number: 1 OBS

[Sens premier du terme :] Nom générique des composés de la forme R₂C+C+O.  1, record 29, French, - %C3%A9th%2D1%2D%C3%A9n%2D1%2Done

Record number: 29, Textual support number: 2 OBS

éth-1-én-1-one : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).  1, record 29, French, - %C3%A9th%2D1%2D%C3%A9n%2D1%2Done

Record 29,  Textual support,  Spanish

Record number: 29, Textual support number: 1 OBS

Fórmula química : C₂H₂O o H₂C=C=O  2, record 29, Spanish, - ceteno

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 DEF

A chemical compound known only in solution, yellow, unstable, hydrogen sulfide odor, decomposed by acids with evolution of hydrogen sulfide, used as analytical reagent, and as insecticide spray.  2, record 30, English, - ammonium%20polysulfide

Record number: 30, Textual support number: 1 OBS

Red ammonium sulfide solution. ... contains about 8% NH3 and 22% sulfur, corresponding to about 30% (NH4)2S3. ... Yellow ammonium sulfide solution ... contains 8-9% NH3 and about the same percentage of sulfur, corresponding to 16-20% as (NH4)2S.  3, record 30, English, - ammonium%20polysulfide

Record number: 30, Textual support number: 2 OBS

Chemical formula: (NH₄)₂x  4, record 30, English, - ammonium%20polysulfide

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 OBS

Connu seulement sous forme de solution, jaune, instable, odeur de SH2. Usages : Réactif chimique; insecticide.  2, record 30, French, - polysulfure%20d%27ammonium

Record number: 30, Textual support number: 2 OBS

Formule chimique : (NH₄)₂x  2, record 30, French, - polysulfure%20d%27ammonium

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 CONT

Polyurethane(or polyisocyanate) resins are produced by the reaction of a diisocyanate with a compound containing at least two active hydrogen atoms, such as diol or diamine. Toluene diisocyanate(TDI), diphenylmethane diisocyanate(MDI) and hexamethylene diisocyanate(HDI) are frequently employed. They are prepared by the reaction of phosgene with the corresponding diamines...  8, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 1 OBS

Use: Preparation of polyurethane resin and spandex fibers, bonding rubber to rayon and nylon.  9, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 2 OBS

1,1’-methylenebis(4-isocyanatobenzene): form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicatd on the present record.  6, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 3 OBS

Also known under the following trade names: Caradate 30; Desmodur 44; Hylene M50; Isonate; Nacconate 300; Rubinate 44.  10, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 4 OBS

p-: This prefix must be italicized.  6, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 5 OBS

MDI: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.  6, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record number: 31, Textual support number: 6 OBS

Chemical formula: CH₂(C₆H₄NCO)₂ or C₁₅H₁₀N₂O₂  10, record 31, English, - 1%2C1%27%2Dmethylenebis%284%2Disocyanatobenzene%29

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 DEF

Composé chimique qui sert à la préparation de résines polyuréthanes et à la fixation du caoutchouc sur la rayonne et le nylon.  6, record 31, French, - 1%2C1%27%2Dm%C3%A9thyl%C3%A8nebis%284%2Disocyanatobenz%C3%A8ne%29

Record number: 31, Textual support number: 1 OBS

1,1'-méthylènebis(4-isocyanatobenzène) : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche.  1, record 31, French, - 1%2C1%27%2Dm%C3%A9thyl%C3%A8nebis%284%2Disocyanatobenz%C3%A8ne%29

Record number: 31, Textual support number: 2 OBS

MDI : abréviation non officielle; ne pas l'utiliser seule, pour éviter tout risque de confusion.  1, record 31, French, - 1%2C1%27%2Dm%C3%A9thyl%C3%A8nebis%284%2Disocyanatobenz%C3%A8ne%29

Record number: 31, Textual support number: 3 OBS

p-: Ce préfixe s'écrit en italique.  1, record 31, French, - 1%2C1%27%2Dm%C3%A9thyl%C3%A8nebis%284%2Disocyanatobenz%C3%A8ne%29

Record number: 31, Textual support number: 4 OBS

Formule chimique : CH₂(C₆H₄NCO)₂ ou C₁₅H₁₀N₂O₂  6, record 31, French, - 1%2C1%27%2Dm%C3%A9thyl%C3%A8nebis%284%2Disocyanatobenz%C3%A8ne%29

Record 31,  Textual support,  Spanish

Record number: 31, Textual support number: 1 OBS

Sólido fundido de color amarillo claro; soluble en acetona, benceno, keroseno y nitrobenceno. Combustible. Fuerte irritante. Tolerancia 0, 02 ppm en el aire.  1, record 31, Spanish, - 4%2C4%27%2Ddiisocianato%20de%20difenilmetano

Record number: 31, Textual support number: 2 OBS

Fórmula química: CH₂(C₆H₄NCO)₂ o C₁₅H₁₀N₂O₂  2, record 31, Spanish, - 4%2C4%27%2Ddiisocianato%20de%20difenilmetano

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 DEF

An inorganic compound of hydrogen with another element. Some are ionic and others are covalent. Hydrides may be either binary or complex; the latter are transition-metal complexes....  2, record 32, English, - hydride

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 DEF

Combinaison d'hydrogène avec d'autres corps simples.  2, record 32, French, - hydrure

Record number: 32, Textual support number: 1 CONT

hydrure de calcium.  2, record 32, French, - hydrure

Record 32,  Textual support,  Spanish

Record number: 32, Textual support number: 1 DEF

Compuesto de hidrógeno con otro elemento. Algunos son iónicos y otros covalentes. Muy tóxico e irritante. Inflamables. Reaccionan violentamente con el agua.  2, record 32, Spanish, - hidruro

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 DEF

A basic compound of chromium, hydrogen and oxygen which appears under the form of a light green powder, which is insoluble in water, and which is used as a catalyst, a tanning agent and a mordant in dyeing cloth.  4, record 33, English, - chromium%28III%29%20hydroxide%20trihydrate

Record number: 33, Textual support number: 1 OBS

chromium hydroxide: A generic name.  1, record 33, English, - chromium%28III%29%20hydroxide%20trihydrate

Record number: 33, Textual support number: 2 OBS

Chemical formula: Cr(OH)₃·3H₂O  4, record 33, English, - chromium%28III%29%20hydroxide%20trihydrate

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 OBS

hydroxyde de chrome : Nom générique.  3, record 33, French, - hydroxyde%20de%20chrome%28III%29%20trihydrate

Record number: 33, Textual support number: 2 OBS

L'hydroxyde de chrome(III) est hydraté; il comprend 3 ou «n» molécules d'eau.  3, record 33, French, - hydroxyde%20de%20chrome%28III%29%20trihydrate

Record number: 33, Textual support number: 3 OBS

Formule chimique : Cr(OH)₃·3H₂O  3, record 33, French, - hydroxyde%20de%20chrome%28III%29%20trihydrate

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 DEF

A colorless very poisonous gaseous compound SbH₃ of antimony and hydrogen that has a disagreeable odor and burns with a bluish green flame and that is usually made by decomposing metallic antimonides with acid.  3, record 34, English, - stibine

Record number: 34, Textual support number: 1 OBS

Chemical formula: SbH₃  4, record 34, English, - stibine