TERMIUM Plus®

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BARIUM DIOXIDE [1 record]

Record 1 2011-08-24

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
BaO2
formula, see observation
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.

OBS

... insoluble in water; used as a bleach and in the glass industry.

OBS

Exists also as a octahydrate BaO2.8H2O.

OBS

barium dioxide(2-): The "-" following the number 2 is a superscript which refers to the minus sign.

OBS

Chemical formula: BaO2

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
BaO2
formula, see observation
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.

OBS

dioxyde(2-) de baryum : Le signe «-» qui suit le chiffre 2 entre parenthèses s'écrit en exposant.

OBS

Formule chimique : BaO2

Key term(s)
  • dioxyde de baryum

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
BaO2
formula, see observation
OBS

Fórmula química: BaO2

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