Cobalt chloride CAS 7646-79-9 is an inorganic compound with the chemical formula CoCl2. It is a blue crystalline powder that quickly turns red as a hexahydrate when exposed to humid air. It is mainly used as an analytical reagent and ammonia absorbent.

Chinese name: Cobalt chloride

Foreign name: cobaltous chloride

Chemical formula: CoCl2

Molecular weight: 129.839

CAS login number: 7646-79-9

EINECS login number: 231-589-4

Melting point: 735 ℃

Boiling point: 1049 ℃

Water solubility: soluble

Density: 3.35 g/cm ³

Appearance: Blue crystalline powder

Physical and chemical properties

Density: 3.35g/cm3

Melting point: 735 º C

Boiling point: 1049 º C

Steam pressure: 33900mmHg at 25 ° C

Appearance: Blue crystalline powder

Solubility: Soluble in water and organic solvents such as ethanol and acetone

Purpose

Mainly used as analytical reagents and ammonia absorbers.

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