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Cobalt(II) hydroxide (Co(OH)2)-Powder

Cobalt(II) hydroxide (Co(OH)2)-Powder

CAS: 21041-93-0
Molecular Formula: Co(OH)2
Purity: 97-99.9%
Products Code: TR27080100UN
Specification Model: -100mesh-325mesh
Hazardous Class: Class 9
EINECS No.: 244-166-4
UN No.: UN3077
Package Class: PG III
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Cobalt(II) hydroxide (Co(OH)2)-Powder introduce:


Cobalt(II) hydroxide or cobaltous hydroxide is the inorganic compound with the formula Co(OH)2, consisting of divalent cobalt cations Co2+ and hydroxide anions HO−. The pure compound, often called the "beta form" (β-Co(OH)2) is a pink solid insoluble in water.

Chemical formula:Co(OH)2

Molar mass:92.948 g/mol

Appearance:rose-red powder or bluish-green powder

Density:3.597 g/cm3

Melting point:168 °C (334 °F; 441 K) (decomposes)

Solubility in water:3.20 mg/L

Solubility product (Ksp):1.0×10−15

Solubility:soluble in acids, ammonia; insoluble in dilute alkalis

Coordination geometry:rhombohedral


Cobalt(II) hydroxide is used as a drying agent for paints and varnishes. It acts as an aid to dry the lithographic inks and catalyst in the preparation of battery electrode impregnating solutions. It is also involved in the synthesis of other cobalt compounds.
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