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HYDROFLUORIC ACID [19 records]
Record 1 - internal organization data 2021-05-13
Record 1, English
Record 1, Subject field(s)
- Chemical Elements and Compounds
- Toxicology
- Occupational Health and Safety
Record 1, Main entry term, English
- decontamination compound
1, record 1, English, decontamination%20compound
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
When workers have been trained about the hazards of HF [hydrofluoric acid] splashes and rapidly utilize a decontamination compound... which acts to neutralize all of the toxic mechanisms of this chemical, it is possible to prevent the development of eye or skin burns and their sequelae... 1, record 1, English, - decontamination%20compound
Record 1, French
Record 1, Domaine(s)
- Éléments et composés chimiques
- Toxicologie
- Santé et sécurité au travail
Record 1, Main entry term, French
- composé de décontamination
1, record 1, French, compos%C3%A9%20de%20d%C3%A9contamination
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Lorsque les travailleurs ont été formés aux dangers des projections d'HF [acide fluorhydrique] et à l'utilisation rapide d'un composé de décontamination [...] qui neutralise la totalité des mécanismes toxiques de cet acide, il est possible d'éviter les brûlures oculaires ou cutanées et leurs séquelles [...] 1, record 1, French, - compos%C3%A9%20de%20d%C3%A9contamination
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2014-09-24
Record 2, English
Record 2, Subject field(s)
- Glass Industry
- Glass Manufacturing
Record 2, Main entry term, English
- acid embossing
1, record 2, English, acid%20embossing
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The obscuring or marking of the glass surface with hydrofluoric acid or its salts. 1, record 2, English, - acid%20embossing
Record number: 2, Textual support number: 1 OBS
acid embossing: term and definition standardized by the International Organization for Standardization (ISO) in 1992. 2, record 2, English, - acid%20embossing
Record 2, French
Record 2, Domaine(s)
- Industrie du verre
- Fabrication du verre
Record 2, Main entry term, French
- matage à l'acide
1, record 2, French, matage%20%C3%A0%20l%27acide
correct, masculine noun, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Matage ou marquage de la surface du verre à l'acide fluorhydrique ou ses sels. 1, record 2, French, - matage%20%C3%A0%20l%27acide
Record number: 2, Textual support number: 1 OBS
matage à l'acide : terme et définition normalisés par l'Organisation internationale de normalisation (ISO) en 1992. 2, record 2, French, - matage%20%C3%A0%20l%27acide
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2013-06-25
Record 3, English
Record 3, Subject field(s)
- Analytical Chemistry
- Soil Science
Record 3, Main entry term, English
- total concentration for inorganics
1, record 3, English, total%20concentration%20for%20inorganics
correct, see observation, standardized
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
total concentration (for inorganics): The total quantity of an element present in all chemical forms and irrespective of its location in the soil material, including that incorporated in silicate minerals. 1, record 3, English, - total%20concentration%20for%20inorganics
Record number: 3, Textual support number: 1 OBS
Determination of the total concentration requires use of an instrumental technique such as X-ray fluorescence analysis or a powerful solvent combination such as a mixture of hydrofluoric and perchloric acid, or alkaline melt. The use of this solvent mixture presents many practical and safety-related problems in the laboratory and is therefore often avoided. 1, record 3, English, - total%20concentration%20for%20inorganics
Record number: 3, Textual support number: 2 OBS
total concentration for inorganics: The term "total concentration (for inorganics)" and the definition have been standardized by the International Organization for Standardization (ISO). 2, record 3, English, - total%20concentration%20for%20inorganics
Record 3, French
Record 3, Domaine(s)
- Chimie analytique
- Science du sol
Record 3, Main entry term, French
- concentration totale pour les matières inorganiques
1, record 3, French, concentration%20totale%20pour%20les%20mati%C3%A8res%20inorganiques
correct, see observation, feminine noun, standardized
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
concentration totale (pour les matières inorganiques) : Quantité totale d'un élément présent sous toutes ses formes chimiques indépendamment de sa localisation dans le matériau du sol, y compris la part intégrée aux minéraux silicatés. 1, record 3, French, - concentration%20totale%20pour%20les%20mati%C3%A8res%20inorganiques
Record number: 3, Textual support number: 1 OBS
La détermination de la concentration totale requiert l'utilisation d'une méthode instrumentale telle que l'analyse par fluorescence-X ou une combinaison de solvants puissants telle qu'un mélange d'acide fluorhydrique et d'acide perchlorique ou de fusion alcaline. L'utilisation de ce mélange solvant présentant de nombreux problèmes pratiques et de sécurité dans le laboratoire d'analyse, elle est, par conséquent, bien souvent évitée. 1, record 3, French, - concentration%20totale%20pour%20les%20mati%C3%A8res%20inorganiques
Record number: 3, Textual support number: 2 OBS
concentration totale pour les matières inorganiques : Le terme «concentration totale (pour les matières inorganiques)» et la définition ont été normalisés par l'Organisation internationale de normalisation (ISO). 2, record 3, French, - concentration%20totale%20pour%20les%20mati%C3%A8res%20inorganiques
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2011-08-26
Record 4, English
Record 4, Subject field(s)
- Chemical Elements and Compounds
- Nuclear Waste Materials
Universal entry(ies) Record 4
Record 4, Main entry term, English
- magnesium fluoride
1, record 4, English, magnesium%20fluoride
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- magnesium flux 2, record 4, English, magnesium%20flux
see observation
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A crystalline salt which exhibits fluorescence by electric light, is soluble in nitric acid, is insoluble in alcohol and water, is noncombustible, occurs naturally as sellaite but can also be derived by adding sodium fluoride or hydrofluoric acid to a solution of magnesium salt, and is used chiefly as a flux and as a coating for optical glass to cut down reflections. 3, record 4, English, - magnesium%20fluoride
Record number: 4, Textual support number: 1 CONT
Uranium Refining Wastes ... tend to be sludges and residues containing calcium sulfate or carbonate (limed raffinate), calcium fluoride, magnesium fluoride and ammonium nitrate. 4, record 4, English, - magnesium%20fluoride
Record number: 4, Textual support number: 1 OBS
magnesium flux: a specific term. 3, record 4, English, - magnesium%20fluoride
Record number: 4, Textual support number: 2 OBS
Chemical formula: MgF2 3, record 4, English, - magnesium%20fluoride
Record 4, French
Record 4, Domaine(s)
- Éléments et composés chimiques
- Déchets nucléaires
Entrée(s) universelle(s) Record 4
Record 4, Main entry term, French
- fluorure de magnésium
1, record 4, French, fluorure%20de%20magn%C3%A9sium
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
Formule chimique : MgF2 2, record 4, French, - fluorure%20de%20magn%C3%A9sium
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Elementos y compuestos químicos
- Desechos nucleares
Entrada(s) universal(es) Record 4
Record 4, Main entry term, Spanish
- fluoruro de magnesio
1, record 4, Spanish, fluoruro%20de%20magnesio
correct, masculine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 OBS
Fórmula química: MgF2 2, record 4, Spanish, - fluoruro%20de%20magnesio
Record 5 - external organization data 2011-08-26
Record 5, English
Record 5, Subject field(s)
- Chemical Elements and Compounds
- Compartment - Canadian Nuclear Safety Commission
Universal entry(ies) Record 5
Record 5, Main entry term, English
- hydrogen fluoride
1, record 5, English, hydrogen%20fluoride
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
A chemical compound having the formula HF which appears under the form of a colorless, fuming gas or liquid, is very soluble in water, is derived by distillation from the reaction product of calcium fluoride and sulfuric acid, also from fluosilicic acid, and is used as a catalyst in alkylation, isomerization, condensation, dehydration, and polymerization reactions, as a fluorinating agent in organic and inorganic reactions, in the production of fluorine and aluminum fluoride, as an additive in liquid rocket propellants and in the refining of uranium. 2, record 5, English, - hydrogen%20fluoride
Record number: 5, Textual support number: 1 OBS
Compare with "hydrofluoric acid", which is hydrogen fluoride in aqueous solution. 2, record 5, English, - hydrogen%20fluoride
Record 5, French
Record 5, Domaine(s)
- Éléments et composés chimiques
- Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s) Record 5
Record 5, Main entry term, French
- fluorure d'hydrogène
1, record 5, French, fluorure%20d%27hydrog%C3%A8ne
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Elementos y compuestos químicos
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es) Record 5
Record 5, Main entry term, Spanish
- fluoruro de hidrógeno
1, record 5, Spanish, fluoruro%20de%20hidr%C3%B3geno
masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2011-07-05
Record 6, English
Record 6, Subject field(s)
- Chemical Elements and Compounds
Universal entry(ies) Record 6
Record 6, Main entry term, English
- ammonium fluoride
1, record 6, English, ammonium%20fluoride
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- neutral ammonium fluoride 2, record 6, English, neutral%20ammonium%20fluoride
avoid
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
A chemical product in the form of white crystals derived by the interaction of ammonium hydroxide and hydrofluoric acid with subsequent crystallization which is used in fluorides, in analytical chemistry, as an antiseptic in brewing, in etching glass, as a textile mordant, for wood preservation and for mothproofing. 3, record 6, English, - ammonium%20fluoride
Record number: 6, Textual support number: 1 OBS
Chemical formula: NH4F or FH4N 3, record 6, English, - ammonium%20fluoride
Record 6, French
Record 6, Domaine(s)
- Éléments et composés chimiques
Entrée(s) universelle(s) Record 6
Record 6, Main entry term, French
- fluorure d'ammonium
1, record 6, French, fluorure%20d%27ammonium
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Composé se présentant sous la forme de cristaux incolores hexagonaux, déliquescents, utilisé en photographie, gravure sur verre, galvanoplastie, thérapeutique (antiseptique), comme mordant, fondant, pour la conservation du bois. 2, record 6, French, - fluorure%20d%27ammonium
Record number: 6, Textual support number: 1 OBS
Formule chimique : NH[Indice 4]F FH4N 2, record 6, French, - fluorure%20d%27ammonium
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Elementos y compuestos químicos
Entrada(s) universal(es) Record 6
Record 6, Main entry term, Spanish
- fluoruro de amonio
1, record 6, Spanish, fluoruro%20de%20amonio
masculine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 OBS
Fórmula química: NH4F o FH4N 2, record 6, Spanish, - fluoruro%20de%20amonio
Record 7 - internal organization data 2011-01-19
Record 7, English
Record 7, Subject field(s)
- Chemistry
- Geochemistry
- Electronic Devices
Universal entry(ies) Record 7
Record 7, Main entry term, English
- silicon
1, record 7, English, silicon
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A group IV nonmetallic element, symbol Si, with atomic number 14, atomic weight 28. 086; dark-brown crystals that burn in air when ignited; soluble in hydrofluoric acid and alkalies; melts at 1410°C... 2, record 7, English, - silicon
Record number: 7, Textual support number: 1 CONT
Silicon is perhaps best known for its uses in a pure form in the electronics industry in solid-state devices, such as transistors and more recently in solar cells. 3, record 7, English, - silicon
Record number: 7, Textual support number: 1 OBS
silicon: term adopted by Environment Canada; used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS). 4, record 7, English, - silicon
Record number: 7, Textual support number: 2 OBS
Also known under the commercial designation Defoamer S-10. 4, record 7, English, - silicon
Record number: 7, Textual support number: 1 PHR
Amorphous silicon powder. 4, record 7, English, - silicon
Record 7, French
Record 7, Domaine(s)
- Chimie
- Géochimie
- Dispositifs électroniques
Entrée(s) universelle(s) Record 7
Record 7, Main entry term, French
- silicium
1, record 7, French, silicium
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Élément non métallique de couleur brune à l'état amorphe, d'un gris de plomb à l'état cristallisé. 2, record 7, French, - silicium
Record number: 7, Textual support number: 1 OBS
Corps simple, de symbole Si et de poids atomique 28,09, présent dans l'eau de mer à l'état dissous et particulaire, constituant la silice des squelettes de divers organismes marins. 3, record 7, French, - silicium
Record number: 7, Textual support number: 2 OBS
Présent dans la nature sous forme de silice ou de silicate, le silicium se présente comme le deuxième élément le plus abondant, après l'oxygène, dans la croûte terrestre (28 p. 100). Ses propriétés semi-conductrices le font employer dans les circuits intégrés. 2, record 7, French, - silicium
Record number: 7, Textual support number: 3 OBS
Élément de numéro atomique 14; masse atomique 28,09. Symbole: Si. 2, record 7, French, - silicium
Record number: 7, Textual support number: 4 OBS
silicium : terme retenu par Environnement Canada; utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA). 4, record 7, French, - silicium
Record 7, Spanish
Record 7, Campo(s) temático(s)
- Química
- Geoquímica
- Dispositivos electrónicos
Entrada(s) universal(es) Record 7
Record 7, Main entry term, Spanish
- silicio
1, record 7, Spanish, silicio
correct, masculine noun
Record 7, Abbreviations, Spanish
Record 7, Synonyms, Spanish
Record 7, Textual support, Spanish
Record number: 7, Textual support number: 1 DEF
Elemento o cuerpo simple, parcialmente metálico, n°. atómico 14, que se obtiene del cuarzo. 2, record 7, Spanish, - silicio
Record number: 7, Textual support number: 1 OBS
El silicio es el elemento que más abunda en la naturaleza. Se encuentra en estado de impureza en la mayoría de las rocas y en la arena. El silicio puro se obtiene mediante un proceso químico a altas temperaturas. Derretido, el silicio se mezcla con otros productos químicos para modificar su naturaleza eléctrica. Debido a su estructura atómica y abundancia es un material ideal como semiconductor. 3, record 7, Spanish, - silicio
Record 8 - internal organization data 2011-01-06
Record 8, English
Record 8, Subject field(s)
- Chemical Elements and Compounds
- Geochemistry
Universal entry(ies) Record 8
Record 8, Main entry term, English
- calcium fluoride
1, record 8, English, calcium%20fluoride
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
Fluoridation.... The fluoride can be added in the form of sodium silico-fluoride(most frequently used), fluosilicic acid, sodium fluoride, or, less frequently, ammonium silico-fluoride, hydrofluoric acid, calcium fluoride... 2, record 8, English, - calcium%20fluoride
Record number: 8, Textual support number: 2 CONT
Uranium refining wastes ... tend to be sludges and residues containing calcium sulfate or carbonate (limed raffinate), calcium fluoride, magnesium fluoride and ammonium nitrate. 3, record 8, English, - calcium%20fluoride
Record number: 8, Textual support number: 1 OBS
Chemical formula: CaF2 4, record 8, English, - calcium%20fluoride
Record 8, French
Record 8, Domaine(s)
- Éléments et composés chimiques
- Géochimie
Entrée(s) universelle(s) Record 8
Record 8, Main entry term, French
- fluorure de calcium
1, record 8, French, fluorure%20de%20calcium
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- fluorure calcique 2, record 8, French, fluorure%20calcique
masculine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Fluoruration [...] On peut utiliser du silicofluorure de sodium (le produit le plus fréquent), de l'acide fluosilicique, du fluorure de sodium, ou, plus rarement, du silicofluorure d'ammonium, de l'acide fluorhydrique, ou du fluorure de calcium [...] 3, record 8, French, - fluorure%20de%20calcium
Record number: 8, Textual support number: 1 OBS
Formule chimique : CaF2 4, record 8, French, - fluorure%20de%20calcium
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Elementos y compuestos químicos
- Geoquímica
Entrada(s) universal(es) Record 8
Record 8, Main entry term, Spanish
- fluoruro de calcio
1, record 8, Spanish, fluoruro%20de%20calcio
correct, masculine noun
Record 8, Abbreviations, Spanish
Record 8, Synonyms, Spanish
- fluoruro cálcico 2, record 8, Spanish, fluoruro%20c%C3%A1lcico
correct, masculine noun
Record 8, Textual support, Spanish
Record number: 8, Textual support number: 1 OBS
Polvo blanco. Aparece en la naturaleza como fluorita o espato flúor. Insoluble en agua; soluble en sales amónicas. Muy tóxico e irritante. 3, record 8, Spanish, - fluoruro%20de%20calcio
Record number: 8, Textual support number: 2 OBS
Fórmula química: CaF2 4, record 8, Spanish, - fluoruro%20de%20calcio
Record 9 - internal organization data 2005-03-08
Record 9, English
Record 9, Subject field(s)
- Chemistry
- Diamond Industry
Record 9, Main entry term, English
- hot acid
1, record 9, English, hot%20acid
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
Acid cleaning :[the] use of hot acids to remove dirt or polishing residue from diamonds. Newly-mined rough diamonds are cleaned with hydrofluoric acid; newly-polished diamonds are boiled in a solution of hydrochloric and sulfuric acids to remove oil, graphite, and other debris from surface fractures and abrasions. Diamonds which have been mounted in jewelry are sometimes boiled in sulfuric acid to remove metal residue and dirt impregnated in the girdle. 2, record 9, English, - hot%20acid
Record number: 9, Textual support number: 2 CONT
Boiler: A member of a processing team who is responsible for cleaning the diamonds, during any stage of processing, by using hot or cold acid. 3, record 9, English, - hot%20acid
Record 9, French
Record 9, Domaine(s)
- Chimie
- Industrie diamantaire
Record 9, Main entry term, French
- acide chaud
1, record 9, French, acide%20chaud
masculine noun
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Les bains d'acide : Pratique très ancienne et courante qui sert à retirer les impuretés prisonnières dans les fissures de surface. Les diamants sont plongés dans un bain d'acide chaud. 2, record 9, French, - acide%20chaud
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2005-02-21
Record 10, English
Record 10, Subject field(s)
- Chemical Elements and Compounds
Record 10, Main entry term, English
- methyl perhydrofluorine 1, record 10, English, methyl%20perhydrofluorine
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 OBS
hydrofluoric : Containing hydrogen and fluorine in chemical combination. [For example :] hydrofluoric acid, or hydrogen fluoride(HF)... 2, record 10, English, - methyl%20perhydrofluorine
Record 10, French
Record 10, Domaine(s)
- Éléments et composés chimiques
Record 10, Main entry term, French
- perhydrofluor méthylique
1, record 10, French, perhydrofluor%20m%C3%A9thylique
see observation, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
Record 10, Textual support, French
Record number: 10, Textual support number: 1 OBS
Proposition de traduction sous toutes réserves. Identité et composition du produit inconnue. 1, record 10, French, - perhydrofluor%20m%C3%A9thylique
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2005-02-16
Record 11, English
Record 11, Subject field(s)
- Atomic Physics
Record 11, Main entry term, English
- hydrofluorination
1, record 11, English, hydrofluorination
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
Hydrofluorination stage. Two different technologies are used for converting UO2 to UF4 : wet process and dry process. In the wet process, UO2 is converted to UF4 by reaction with aqueous hydrofluoric acid. 1, record 11, English, - hydrofluorination
Record 11, French
Record 11, Domaine(s)
- Physique atomique
Record 11, Main entry term, French
- hydrofluoration
1, record 11, French, hydrofluoration
correct, feminine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Raffinage et production de l'UF4. Nous présentons le procédé humide qui est généralement utilisé : [...] l'hydrofluoration d'UO2 par l'acide fluorhydrique HF dans un four pour produire l'UF4. 1, record 11, French, - hydrofluoration
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2001-11-13
Record 12, English
Record 12, Subject field(s)
- Digestive Tract
Record 12, Main entry term, English
- corrosion
1, record 12, English, corrosion
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 CONT
Inside the stomach, hydrofluoric acid causes a similar dark red corrosion of the mucous membrane. 2, record 12, English, - corrosion
Record 12, French
Record 12, Domaine(s)
- Appareil digestif
Record 12, Main entry term, French
- érosion
1, record 12, French, %C3%A9rosion
feminine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
Dans l'intestin normal, l'érosion de la couche de mucus du côté de la lumière est due à l'action d'enzymes et au frottement des matières en cours de digestion; cette érosion doit être compensée par des sécrétions en provenance de la muqueuse pour garantir l'intégrité de la barrière. 2, record 12, French, - %C3%A9rosion
Record 12, Spanish
Record 12, Campo(s) temático(s)
- Aparato digestivo
Record 12, Main entry term, Spanish
- corrosión
1, record 12, Spanish, corrosi%C3%B3n
feminine noun
Record 12, Abbreviations, Spanish
Record 12, Synonyms, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2001-06-21
Record 13, English
Record 13, Subject field(s)
- Chemical Elements and Compounds
- Pollutants
- Air Pollution
Record 13, Main entry term, English
- atmospheric hydrofluoric acid
1, record 13, English, atmospheric%20hydrofluoric%20acid
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
Atmospheric hydrofluoric acid concentrations were measured at nine sites in Southern California during an 8-month period. 2, record 13, English, - atmospheric%20hydrofluoric%20acid
Record 13, French
Record 13, Domaine(s)
- Éléments et composés chimiques
- Agents de pollution
- Pollution de l'air
Record 13, Main entry term, French
- acide fluorhydrique atmosphérique
1, record 13, French, acide%20fluorhydrique%20atmosph%C3%A9rique
correct, masculine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
- acide fluorhydrique présent dans l'atmosphère 2, record 13, French, acide%20fluorhydrique%20pr%C3%A9sent%20dans%20l%27atmosph%C3%A8re
proposal, masculine noun
Record 13, Textual support, French
Record number: 13, Textual support number: 1 OBS
Attention : Ne pas confondre avec «hydrofluorique», qui a un tout autre sens. Renseignement : Andrée Marson & associés, Montréal, 04/80. 3, record 13, French, - acide%20fluorhydrique%20atmosph%C3%A9rique
Record number: 13, Textual support number: 2 OBS
Le composé fluoré le mieux connu comme polluant atmosphérique est l'acide fluorhydrique (HF), mais on pense moins souvent aux fluorures alcalins, alcalino-terreux ou métalliques, fluorures simples ou doubles qui sont parfois en quantités plus importantes que HF [...] 4, record 13, French, - acide%20fluorhydrique%20atmosph%C3%A9rique
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2001-03-05
Record 14, English
Record 14, Subject field(s)
- Chemical Elements and Compounds
- Water Treatment (Water Supply)
- Wastewater Treatment
Record 14, Main entry term, English
- ammonium silico-fluoride
1, record 14, English, ammonium%20silico%2Dfluoride
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
Record 14, Textual support, English
Record number: 14, Textual support number: 1 CONT
Fluoridation.... The fluoride can be added in the form of sodium silico-fluoride(most frequently used), fluosilicic acid, sodium fluoride, or, less frequently, ammonium silico-fluoride, hydrofluoric acid, calcium fluoride... 2, record 14, English, - ammonium%20silico%2Dfluoride
Record 14, French
Record 14, Domaine(s)
- Éléments et composés chimiques
- Traitement des eaux
- Traitement des eaux usées
Record 14, Main entry term, French
- silicofluorure d'ammonium
1, record 14, French, silicofluorure%20d%27ammonium
correct, masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 CONT
Fluoruration. [...] On peut utiliser du silicofluorure de sodium (le produit le plus fréquent), de l'acide fluosilicique, du fluorure de sodium, ou, plus rarement, du silicofluorure d'ammonium, de l'acide fluorhydrique, ou du fluorure de calcium [...] 2, record 14, French, - silicofluorure%20d%27ammonium
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 1998-09-22
Record 15, English
Record 15, Subject field(s)
- Petrography
- Mineralogy
Record 15, Main entry term, English
- beta quartz
1, record 15, English, beta%20quartz
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
- B-quartz 2, record 15, English, B%2Dquartz
correct
- B quartz 3, record 15, English, B%20quartz
correct
Record 15, Textual support, English
Record number: 15, Textual support number: 1 DEF
The polymorph of quartz that is stable from 573°C to 870°C, that has a vertical axis of six-fold symmetry and six horizontal axis of two-fold symmetry, and that has a lower refractive index and birefringence than those of alpha quartz. 4, record 15, English, - beta%20quartz
Record number: 15, Textual support number: 1 CONT
Some natural substances exist in various mineral forms(polymorphs) and some use of their inversion temperatures can be made in geothermometry. For example, B-quartz inverts to [alpha]-quartz with falling temperature at 573°C. We can determine wether quartz originally crystallized as B-quartz by etching with hydrofluoric acid, and thus decide whether it was deposited above or below 573°C. 5, record 15, English, - beta%20quartz
Record 15, French
Record 15, Domaine(s)
- Pétrographie
- Minéralogie
Record 15, Main entry term, French
- quartz bêta
1, record 15, French, quartz%20b%C3%AAta
correct, masculine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
- quartz B 2, record 15, French, quartz%20B
correct, masculine noun
Record 15, Textual support, French
Record number: 15, Textual support number: 1 CONT
Déséquilibre thermodynamique des zones liminaires. - [...] Un tel déséquilibre affecte [...] le quartz alpha vers 573 °C, au moment où il se transforme en quartz bêta [...]. À ce moment le quartz présente une sensibilité chimique exceptionnelle et se combine facilement avec des oxydes métalliques alors qu'il ne peut le faire ni avant ni après. 1, record 15, French, - quartz%20b%C3%AAta
Record number: 15, Textual support number: 2 CONT
[...] à 573 °C, le quartz alpha rhomboédrique se transforme en quartz ß. Ce passage s'accompagne d'un état de désordre du réseau cristallin [...] 3, record 15, French, - quartz%20b%C3%AAta
Record number: 15, Textual support number: 3 CONT
Les inversions de la silice sont classiques, en particulier celle du quartz [alpha] en quartz B à 575°. À la température ordinaire le quartz est toujours [alpha] (pseudo-hexagonal, rhomboédrique énantiomorphe). Le quartz B (hexagonal, hémiedrie énantiomorphe) inversé en quartz [alpha] par refroidissement peut être reconnu à certains caractères, par exemple à un maclage irrégulier et à une fracturation très poussée [...] 4, record 15, French, - quartz%20b%C3%AAta
Record number: 15, Textual support number: 4 CONT
Quartz haute température (quartz ß). 5, record 15, French, - quartz%20b%C3%AAta
Record 15, Spanish
Record 15, Textual support, Spanish
Record 16 - internal organization data 1994-10-01
Record 16, English
Record 16, Subject field(s)
- Ornamental Glassware
Record 16, Main entry term, English
- etching
1, record 16, English, etching
correct, noun
Record 16, Abbreviations, English
Record 16, Synonyms, English
- acid etching 2, record 16, English, acid%20etching
correct
- acid-etching 3, record 16, English, acid%2Detching
correct
Record 16, Textual support, English
Record number: 16, Textual support number: 1 DEF
Decoration on the surface of glass by the use of hydrofluoric acid, varying from a satin mat finish to a deeper rough effect. 1, record 16, English, - etching
Record 16, French
Record 16, Domaine(s)
- Verrerie d'art
Record 16, Main entry term, French
- gravure à l'acide
1, record 16, French, gravure%20%C3%A0%20l%27acide
correct, feminine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
- gravure "arabe" 2, record 16, French, gravure%20%5C%22arabe%5C%22
correct, feminine noun, less frequent
Record 16, Textual support, French
Record number: 16, Textual support number: 1 CONT
La gravure à l'acide permet des productions de plus grandes séries. 3, record 16, French, - gravure%20%C3%A0%20l%27acide
Record number: 16, Textual support number: 1 OBS
L'acide fluorhydrique est le seul qui agisse sur le verre. 3, record 16, French, - gravure%20%C3%A0%20l%27acide
Record 16, Spanish
Record 16, Textual support, Spanish
Record 17 - internal organization data 1987-12-15
Record 17, English
Record 17, Subject field(s)
- Ornamental Glassware
Record 17, Main entry term, English
- etched glass
1, record 17, English, etched%20glass
correct
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 DEF
The method of engraving or etching a design on glass by means of hydrofluoric acid was first done by Henry Schwanhardt. The parts that are not to be exposed to the acid are covered in a protective resinous paint or wax. 1, record 17, English, - etched%20glass
Record 17, French
Record 17, Domaine(s)
- Verrerie d'art
Record 17, Main entry term, French
- verre gravé à l'eau-forte
1, record 17, French, verre%20grav%C3%A9%20%C3%A0%20l%27eau%2Dforte
correct, masculine noun
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record 17, Spanish
Record 17, Textual support, Spanish
Record 18 - internal organization data 1985-07-16
Record 18, English
Record 18, Subject field(s)
- Chemistry
Record 18, Main entry term, English
- liquid etching acid
1, record 18, English, liquid%20etching%20acid
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
Record 18, Textual support, English
Record number: 18, Textual support number: 1 DEF
... a mixture of nitric acid, hydrofluoric acid, having nitric acid in concentrations of not more than 60% by weight, hydrofluoric acid in concentrations of not less than 4% by weight and water not less than 24% by weight, and may contain acetic acid. 1, record 18, English, - liquid%20etching%20acid
Record 18, French
Record 18, Domaine(s)
- Chimie
Record 18, Main entry term, French
- acide liquide pour gravures
1, record 18, French, acide%20liquide%20pour%20gravures
masculine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 1982-04-19
Record 19, English
Record 19, Subject field(s)
- Chemical Elements and Compounds
Record 19, Main entry term, English
- sodium silico-fluoride 1, record 19, English, sodium%20silico%2Dfluoride
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record number: 19, Textual support number: 1 OBS
Fluoridation(...) The fluoride can be added in the form of sodium silico-fluoride(most frequently used), fluosilicic acid, sodium fluoride, or, less frequently, ammonium silico-fluoride, hydrofluoric acid, calcium fluoride(...) 1, record 19, English, - sodium%20silico%2Dfluoride
Record 19, French
Record 19, Domaine(s)
- Éléments et composés chimiques
Record 19, Main entry term, French
- silicofluorure de sodium
1, record 19, French, silicofluorure%20de%20sodium
correct
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 OBS
Fluoruration (...) On peut utiliser du silicofluorure de sodium (le produit le plus fréquent), de l'acide fluosilicique, du fluorure de sodium, ou, plus rarement, du silicofluorure d'ammonium, de l'acide fluorhydrique, ou du fluorure de calcium (...) 1, record 19, French, - silicofluorure%20de%20sodium
Record 19, Spanish
Record 19, Textual support, Spanish
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