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WITHERITE [3 records]

Record 1 2011-08-26

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
BaCO3
formula, see observation
513-77-9
CAS number
DEF

A chemical compound in the form of a white powder, found in nature as the mineral witherite.

OBS

Use: treatment of brines in chlorine-alkali cells to remove sulfates, rodenticide, barium salts, ceramic flux, optical glass, case-hardening baths, ferrites, in radiation-resistant glass for color television tubes.

OBS

Chemical formula: BaCO3

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
BaCO3
formula, see observation
513-77-9
CAS number
OBS

Cristaux blancs [...]. Utilisations : sels de baryum, colorants, pyrotechnie, verre optique, charge (peinture, linoléum, papier, caoutchouc), purification des eaux, céramique.

OBS

Formule chimique : BaCO3

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
BaCO3
formula, see observation
513-77-9
CAS number
OBS

Fórmula química: BaCO3

Save record 1

Record 2 2011-06-17

English

Subject field(s)
  • Mineralogy
DEF

An orthorhombic mineral which consists of a carbonate of barium and calcium, considered as being midway between witherite and strontianite.

OBS

alstonite: Named from Alston Moor, Cumberland, England.

French

Domaine(s)
  • Minéralogie
DEF

Minéral (carbonate de calcium et de baryum), se présentant en cristaux maclés de symétrie orthorhombique [...]

CONT

L'alstonite est une withérite calcique [...]

OBS

Étymologie : de la région d'Alston, Cumberland (Grande-Bretagne).

Spanish

Save record 2

Record 3 2010-09-21

English

Subject field(s)
  • Chemistry
  • Geochemistry
Universal entry(ies)
DEF

A silver-white malleable toxic bivalent metallic element of the alkaline-earth group that tarnishes rapidly in air, that occurs only in combination especially as barite and witherite, that is made by reduction of barium oxide or by electrolysis of a fused salt(as barium chloride), and that is used in the form of alloys chiefly as a getter in electron tubes.

OBS

barium: term adopted by Environment Canada; used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).

OBS

Also known under the following designations: UN 1399 (DOT); UN 1400 (Barium); UN 1854 (barium alloys, pyrophoric).

OBS

Symbol: Ba

French

Domaine(s)
  • Chimie
  • Géochimie
Entrée(s) universelle(s)
DEF

Métal alcalino-terreux blanc argenté, malléable et brûlant facilement quand il est chauffé à l'air.

OBS

[Le baryum] entre dans la composition de certains minéraux : barytine, celsiane, hyalophane, withérite. Numéro atomique 56, nombre de masse 137,34.

OBS

baryum : terme retenu par Environnement Canada; utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA).

OBS

Symbole : Ba

Spanish

Campo(s) temático(s)
  • Química
  • Geoquímica
Entrada(s) universal(es)
DEF

Elemento químico de símbolo Ba, número atómico 56, masa atómica 137.33, configuración electrónica (Xe)6s², con 25 nucleidos, 7 de los cuales son estables.

OBS

Pertenece al grupo de los elementos alcalinotérreos.

Save record 3

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