TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
GYPSE CHIMIQUE [8 records]
Record 1 - internal organization data 2011-06-03
Record 1, English
Record 1, Subject field(s)
- Mineralogy
Record 1, Main entry term, English
- ettringite
1, record 1, English, ettringite
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- woodfordite 1, record 1, English, woodfordite
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A hexagonal mineral which consists of a calcium sulfoaluminate hydrate occurring in minute colorless acicular crystals. 2, record 1, English, - ettringite
Record number: 1, Textual support number: 1 OBS
Ettringite has prismatic cleavage. Found in limestone inclusions in lava, at Ettringen and Mayen in Rhineland. 2, record 1, English, - ettringite
Record number: 1, Textual support number: 2 OBS
Compare with "secondary ettringite." 3, record 1, English, - ettringite
Record 1, French
Record 1, Domaine(s)
- Minéralogie
Record 1, Main entry term, French
- ettringite
1, record 1, French, ettringite
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- woodfordite 2, record 1, French, woodfordite
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Sulfate hydraté naturel de calcium et d’aluminium, minéral du système hexagonal se présentant en petits cristaux prismatiques ou pyramidaux, incolores à transparents. 3, record 1, French, - ettringite
Record number: 1, Textual support number: 1 CONT
On a démontré que l'attaque du béton par les sulfates résulte d’une réaction chimique qui se produit en présence d’eau entre l'ion sulfate et l'aluminate de calcium hydraté, et/ou les éléments constitutifs de l'hydrate de calcium de la pâte de ciment durcie. Les produits qui résultent de ces réactions sont l'hydrate de sulfoaluminate de calcium communément appelé ettringite et l'hydrate de sulfate de calcium mieux connu sous le nom de gypse. 4, record 1, French, - ettringite
Record number: 1, Textual support number: 1 OBS
Voir aussi la fiche pour «sulfoaluminate de calcium hydraté», le nom chimique équivalent, et pour «sel de Candlot», sulfoaluminate de calcium expansif formé par réaction entre l’aluminate de calcium hydraté contenu dans les ciments portlands et les eaux agressives rencontrées dans les sols ou en mer. 5, record 1, French, - ettringite
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Mineralogía
Record 1, Main entry term, Spanish
- ettringita
1, record 1, Spanish, ettringita
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Silicato hidratado de calcio y aluminio [...]; cristaliza en el sistema hexagonal. 1, record 1, Spanish, - ettringita
Record 2 - internal organization data 2011-05-16
Record 2, English
Record 2, Subject field(s)
- Chemical Elements and Compounds
- Food Additives
- Winemaking
- Geochemistry
Universal entry(ies) Record 2
Record 2, Main entry term, English
- calcium sulfate
1, record 2, English, calcium%20sulfate
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- calcium sulphate 2, record 2, English, calcium%20sulphate
former designation, avoid
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A chemical product which occurs naturally as gypsum and is obtained when sulfuric acid, H2SO4, is combined with calcium hydroxide, CA(OH)2, which appears in the form of a fine, odorless, tasteless, yellowish-white powder, and which is used as a dough conditioner, a gelling and a firming agent in the wine-making and brewing industries, as well as in the manufacture of cheese and preserves. 3, record 2, English, - calcium%20sulfate
Record number: 2, Textual support number: 1 CONT
Calcium sulfate sometimes contaminates drilling fluids or may be added to provide special properties. It forms a tenacious scale in certain water-handling facilities. 4, record 2, English, - calcium%20sulfate
Record number: 2, Textual support number: 1 OBS
Chemical formula: CaSO4 3, record 2, English, - calcium%20sulfate
Record 2, French
Record 2, Domaine(s)
- Éléments et composés chimiques
- Additifs alimentaires
- Industrie vinicole
- Géochimie
Entrée(s) universelle(s) Record 2
Record 2, Main entry term, French
- sulfate de calcium
1, record 2, French, sulfate%20de%20calcium
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Produit chimique existant à l'état naturel sous forme de gypse qui se présente sous la forme d’une poudre fine, d’un blanc tirant un peu sur le jaune, inodore et insipide, et que l'on utilise en vinification, en brasserie, en fromagerie, en conserverie en raison de ses propriétés d’agent de conditionnement des pâtes, de gélifiant et de raffermisseur. 2, record 2, French, - sulfate%20de%20calcium
Record number: 2, Textual support number: 1 OBS
Formule chimique : CaSO4 2, record 2, French, - sulfate%20de%20calcium
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Elementos y compuestos químicos
- Aditivos alimentarios
- Industria vinícola
- Geoquímica
Entrada(s) universal(es) Record 2
Record 2, Main entry term, Spanish
- sulfato de calcio
1, record 2, Spanish, sulfato%20de%20calcio
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 OBS
Fórmula química: CaSO4 2, record 2, Spanish, - sulfato%20de%20calcio
Record 3 - internal organization data 2010-05-21
Record 3, English
Record 3, Subject field(s)
- Binders and Mastics (Constr.)
- Concrete Construction
Record 3, Main entry term, English
- chemical plaster 1, record 3, English, chemical%20plaster
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record 3, French
Record 3, Domaine(s)
- Liants et mastics (Construction)
- Bétonnage
Record 3, Main entry term, French
- plâtre chimique
1, record 3, French, pl%C3%A2tre%20chimique
masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Plâtre préparé par déshydratation de gypse chimique. 1, record 3, French, - pl%C3%A2tre%20chimique
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2001-11-15
Record 4, English
Record 4, Subject field(s)
- Chemical Elements and Compounds
Record 4, Main entry term, English
- calcium sulfoaluminate hydrate
1, record 4, English, calcium%20sulfoaluminate%20hydrate
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
Occurs in nature under the name of "ettringite" or "woodfordite" (q.v.). See also "calcium sulfoaluminate." 2, record 4, English, - calcium%20sulfoaluminate%20hydrate
Record 4, French
Record 4, Domaine(s)
- Éléments et composés chimiques
Record 4, Main entry term, French
- sulfoaluminate de calcium hydraté
1, record 4, French, sulfoaluminate%20de%20calcium%20hydrat%C3%A9
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- hydrate de sulfoaluminate de calcium 2, record 4, French, hydrate%20de%20sulfoaluminate%20de%20calcium
avoid, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
On a démontré que l'attaque du béton par les sulfates résulte d’une réaction chimique qui se produit en présence d’eau entre l'ion sulfate et l'aluminate de calcium hydraté, et/ou les éléments constitutifs de l'hydrate de calcium de la pâte de ciment durcie. Les produits qui résultent de ces réactions sont l'hydrate de sulfoaluminate de calcium communément appelé ettringite et l'hydrate de sulfate de calcium mieux connu sous le nom de gypse. 2, record 4, French, - sulfoaluminate%20de%20calcium%20hydrat%C3%A9
Record number: 4, Textual support number: 1 OBS
Se trouve à l’état naturel sous les noms d’«ettringite» (ou «woodfordite»; voir cette fiche). Voir aussi «sel de Candlot», qui désigne le sulfoaluminate de calcium expansif formé par réaction entre l’aluminate de calcium hydraté contenu dans les ciments portlands et les eaux agressives rencontrées dans les sols ou en mer. Voir aussi «sulfoaluminate de calcium» tout court. 3, record 4, French, - sulfoaluminate%20de%20calcium%20hydrat%C3%A9
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2001-11-15
Record 5, English
Record 5, Subject field(s)
- Chemical Elements and Compounds
- Cement Industry
- Natural Construction Materials
Record 5, Main entry term, English
- calcium sulfoaluminate
1, record 5, English, calcium%20sulfoaluminate
correct, see observation
Record 5, Abbreviations, English
Record 5, Synonyms, English
- calcium sulphoaluminate 2, record 5, English, calcium%20sulphoaluminate
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Calculation of Chemical Water Demand for Hydration of Calcium Sulfoaluminate Cement ... 3, record 5, English, - calcium%20sulfoaluminate
Record number: 5, Textual support number: 1 OBS
calcium sulfoaluminate: form recommended by the IUPAC (International Union of Pure and Applied Chemistry). 4, record 5, English, - calcium%20sulfoaluminate
Record number: 5, Textual support number: 2 OBS
Not to be confused with "ettringite" (or "woodfordite", q.v.), which corresponds to the hydrate form of calcium sulfoaluminate (see "calcium sulfoaluminate hydrate"). 5, record 5, English, - calcium%20sulfoaluminate
Record 5, French
Record 5, Domaine(s)
- Éléments et composés chimiques
- Cimenterie
- Matériaux de construction naturels
Record 5, Main entry term, French
- sulfoaluminate de calcium
1, record 5, French, sulfoaluminate%20de%20calcium
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
On a démontré que l'attaque du béton par les sulfates résulte d’une réaction chimique qui se produit en présence d’eau entre l'ion sulfate et l'aluminate de calcium hydraté, et/ou les éléments constitutifs de l'hydrate de calcium de la pâte de ciment durcie. Les produits qui résultent de ces réactions sont l'hydrate de sulfoaluminate de calcium communément appelé ettringite et l'hydrate de sulfate de calcium mieux connu sous le nom de gypse. 2, record 5, French, - sulfoaluminate%20de%20calcium
Record number: 5, Textual support number: 1 OBS
Ne pas confondre avec «ettringite» (ou «woodfordite», voir cette fiche), qui correspond au sulfoaluminate de calcium sous forme d’hydrate. 3, record 5, French, - sulfoaluminate%20de%20calcium
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2001-07-26
Record 6, English
Record 6, Subject field(s)
- Heat (Physics)
- Chemical Engineering
- Binders and Mastics (Constr.)
Record 6, Main entry term, English
- heat of hydration
1, record 6, English, heat%20of%20hydration
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- enthalpy of hydration 2, record 6, English, enthalpy%20of%20hydration
correct
- hydration heat 3, record 6, English, hydration%20heat
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
[The] heat evolved by chemical reactions with water, such as that evolved during the setting and hardening of portland cement. 4, record 6, English, - heat%20of%20hydration
Record number: 6, Textual support number: 2 DEF
The heat evolved or absorbed when water becomes part of a crystalline structure. 5, record 6, English, - heat%20of%20hydration
Record 6, Key term(s)
- heat of setting
Record 6, French
Record 6, Domaine(s)
- Chaleur (Physique)
- Génie chimique
- Liants et mastics (Construction)
Record 6, Main entry term, French
- chaleur d’hydratation
1, record 6, French, chaleur%20d%26rsquo%3Bhydratation
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- enthalpie d’hydratation 2, record 6, French, enthalpie%20d%26rsquo%3Bhydratation
proposal, feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Chaleur engendrée par la prise d’un liant hydraulique. 3, record 6, French, - chaleur%20d%26rsquo%3Bhydratation
Record number: 6, Textual support number: 1 OBS
L'hydratation désigne deux processus chimiques différents. Le premier correspond à l'insertion d’une ou plusieurs molécules d’eau dans un cristal, sans modification de l'espèce chimique contenue dans le cristal. C'est le cas de la transformation du plâtre(2SO4Ca, 1H2O) en gypse(2SO4Ca, 4H2O), qui constitue la prise du plâtre. Le dégagement de chaleur est assez limité. Le deuxième processus est une vraie réaction, transformant l'espèce chimique qui subit l'hydratation en une autre espèce, et se fait avec un fort dégagement de chaleur. 4, record 6, French, - chaleur%20d%26rsquo%3Bhydratation
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Calor (Física)
- Ingenieria química
- Argamasas y masillas (Construcción)
Record 6, Main entry term, Spanish
- calor de hidratación
1, record 6, Spanish, calor%20de%20hidrataci%C3%B3n
correct, masculine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Aumento de entalpía que acompaña la formación de un hidrato a partir de la forma anhidra de un compuesto y de agua a presión constante. 2, record 6, Spanish, - calor%20de%20hidrataci%C3%B3n
Record 7 - internal organization data 1985-12-13
Record 7, English
Record 7, Subject field(s)
- Binders and Mastics (Constr.)
Record 7, Main entry term, English
- chemical gypsum 1, record 7, English, chemical%20gypsum
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record 7, French
Record 7, Domaine(s)
- Liants et mastics (Construction)
Record 7, Main entry term, French
- gypse chimique
1, record 7, French, gypse%20chimique
correct, masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Gypse obtenu par réaction chimique. On désigne sous ce vocable les gypses sous-produits de certaines réactions chimiques industrielles(fabrication d’acide phosphorique en particulier). 1, record 7, French, - gypse%20chimique
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1977-11-29
Record 8, English
Record 8, Subject field(s)
- Geology
- Geochemistry
Record 8, Main entry term, English
- restricted arid environment
1, record 8, English, restricted%20arid%20environment
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 OBS
[In a restricted marine environment] If the climate is arid, evaporation exceeds inflow, and the water becomes hypersaline. ... Under conditions of aridity, the restricted sea has adjacent lands with little or no stream action other than torrential episodes which may occasionally wash in detrital material. The sea may attain high temperatures, with excessive evaporation, and development of salinity greater than that of the open sea. Excessive evaporation produces a lowering of water level, and induces a permanent inflowing current of normal sea water across, or through, the restricting barriers. ... If it were not for the continued inflow current, the history of restricted seas in arid climates would be short. The water would completely evaporate, leaving behind a relatively thin coating of saline residue. Maintenance of inflow from the open sea provides a continuous supply of dissolved salts, and a balance is reached between evaporation and inflow for given conditions. Inevitably, the concentration of salts within the restricted area is increased and may reach the saturation point for some. 2, record 8, English, - restricted%20arid%20environment
Record 8, French
Record 8, Domaine(s)
- Géologie
- Géochimie
Record 8, Main entry term, French
- environnement restreint aride
1, record 8, French, environnement%20restreint%20aride
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 OBS
[L']environnement restreint aride [est un des milieux marins de la sédimentation chimique. ] Dans cet environnement l'évaporation locale excède l'apport d’eau par les fleuves; exemples : Mer Rouge, Méditerranée, Kara Boughaz(dans la Caspienne). Dans ces conditions la densité des eaux de surface détermine les courants de convection. Si le seuil qui restreint le milieu est suffisamment bas, les eaux denses s’écoulent vers le large tandis que l'eau marine moins dense pénètre en surface dans le bassin : c'est le cas en Méditerranée et en Mer Rouge. Si le seuil est élevé, à faible profondeur sous la surface, il y a peu d’écoulement des eaux denses et salines vers le large, et la salinité s’accroît; c'est le cas dans le golfe de Kara Boughaz(salinité : 165 %). Dans ce milieu la surface Eh=O coïncide avec l'interface de dépôt. Cet environnement est, typiquement, celui du dépôt des «évaporites» ou dépôts salins, «stratifiés» :gypse anhydrite, halite(sel gemme), dolomite «primaire» ou syngénétique(avec éventuellement calcite), polyhalite, sylvite, etc. 1, record 8, French, - environnement%20restreint%20aride
Record 8, Spanish
Record 8, Textual support, Spanish
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