Cobaltic-cobaltous oxide

Agent Name
Cobaltic-cobaltous oxide
CAS Number
1308-06-1
Formula
Co3-O4
Major Category
Metals
Synonyms
Cobalt tetraoxide; Cobalto-cobaltic oxide; Cobalto-cobaltic tetroxide; Cobaltosic oxide; Tricobalt tetraoxide; Tricobalt tetroxide; Cobalt oxide (Co3O4); Cobalt(II,III) oxide; [ChemIDplus]
Category
Metals, Inorganic Compounds
Description
Black or grey solid; [Merck Index] Black powder, insoluble in water; [MSDSonline]
Sources/Uses
Used in enamels, semiconductors, and grinding wheels; [Merck Index] When cobalt (II) oxide is heated at 400-500 deg C in an atmosphere of oxygen, the cobalt (II,III) oxide is formed. [Ullmann]
Comments
Harmful if swallowed; May cause skin sensitization; [MSDSonline] See "Cobalt."
Biomedical References
Search PubMed

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
Explanatory Notes
mp = 900 deg C; [MSDSonline]

Adverse Effects

Skin Sensitizer
Yes
Fibrogenic
Yes
IARC Carcinogen
Not classifiable

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure:

Activities

Activities with risk of exposure: