Cobalt(II) hydroxide
Agent Name
Cobalt(II) hydroxide
CAS Number
21041-93-0
Formula
Co-H2-O2
Major Category
Metals
Synonyms
Cobalt dihydroxide; Cobalt(2+) hydroxide; Cobaltous hydroxide; Cobalt hydroxide (Co(OH)2); [ChemIDplus]
Category
Metals, Inorganic Compounds
Description
Blue-green or rose-red solid (red form more stable); [Merck Index] Pink powder, practically insoluble in water; [MSDSonline]
Sources/Uses
Used to make cobalt compounds, as a drier for paints, to aid drying of lithographic inks, and in storage battery electrode impregnating solutions; [Merck Index]
Comments
May be harmful; May cause skin sensitization; [MSDSonline] See "Cobalt."
Biomedical References
Exposure Assessment
BEI
Cobalt in urine = 15 ug/L; sample at end of shift at end of workweek;
TLV (ACGIH)
0.02 mg/m3, as Co
Adverse Effects
Skin Sensitizer
Yes
IARC Carcinogen
Not classifiable
ACGIH Carcinogen
Confirmed Animal
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: