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PRECIPITE SULFATE BARYUM [2 records]

Record 1 2005-04-06

English

Subject field(s)
  • Chemical Elements and Compounds
  • Paints and Varnishes (Industries)
  • Dyes and Pigments (Industries)
DEF

Barium sulfate obtained as a fine heavy white precipitate from aqueous solutions of a soluble barium compound (as barium sulfide) and sodium sulfate.

OBS

White powder; specific gravity, 4,476; used in paint industry and as filler for textiles, rubber, etc.

French

Domaine(s)
  • Éléments et composés chimiques
  • Peintures et vernis (Industries)
  • Teintures et pigments (Industries)
CONT

Le sulfate de baryum [peut s'obtenir] artificiellement par action de l'acide sulfurique sur un sel soluble de baryum. [...] On l'emploie en peinture, sous le nom de «blanc fixe» [...]

OBS

blanc fixe; sulfate de baryum artificiel : termes normalisés par l'AFNOR.

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Pinturas y barnices (Industrias)
  • Tinturas y pigmentos (Industrias)
Save record 1

Record 2 1996-02-28

English

Subject field(s)
  • Chemical Elements and Compounds
  • Geochemistry
CONT

Uranium mine and mill tailings constitute the largest single source of LLW in Ontario ... Tailings are formed of ground-up rock and barium sulfate precipitates, generally located in dammed-up impoundments or smaller lakes.

OBS

barium sulfate: A colorless crystalline insoluble salt ... occurring in nature as barite, obtained artificially by precipitation ...

French

Domaine(s)
  • Éléments et composés chimiques
  • Géochimie
OBS

précipité : Substance séparée de son solvant et tombée au fond du vase, par l'action d'un réactif [appelé «réactif précipitant»] que l'on a introduit dans le liquide.

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Geoquímica
Save record 2

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