Selenium dioxide CAS  7446-08-4 , a type of oxide with the chemical formula SeO2, is a white crystalline powder with a yellow green vapor. It is soluble in water and polar organic solvents and is used as an oxidant, catalyst, chemical reagent, and raw material for the production of various inorganic selenium compounds.

Chinese name: Selenium dioxide

Foreign name: Selenium dioxide

Chemical formula: SeO2

Molecular weight: 110.959

CAS login number: 7446-08-4

EINECS login number: 231-194-7

Melting point: 315 ℃

Boiling point: 684.9 ℃

Water solubility: soluble

Density: 3.95 g/cm ³

Appearance: White crystalline powder

Purpose

Used as an oxidant, catalyst, chemical reagent for organic compounds, and as a raw material for the production of various inorganic selenium compounds.

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