Cobaltous oxide
Agent Name
Cobaltous oxide
CAS Number
1307-96-6
Formula
Co-O
Major Category
Metals
Synonyms
C.I. 77322; C.I. Pigment Black 13; CI 77322; CI Pigment Black 13; Cobalt Black; Cobalt monooxide; Cobalt monoxide; Cobalt oxide (CoO); Cobalt(2+) oxide; Cobalt(II) oxide; Monocobalt oxide; Zaffre; [ChemIDplus] UN3288
Category
Metals, Inorganic Compounds
Description
Solid that is dark gray (commercial product), olive green, or red; [Merck Index] Green powder, insoluble in water; [MSDSonline]
Sources/Uses
Used in catalysts, dryers, waste-gas scavengers, feed additives, tungsten carbide, semiconductors, enamel coatings, and pigments for ceramics and glass; [HSDB]
Comments
May cause skin sensitization and asthma after prolonged contact; [ICSC] A skin and eye irritant; [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
Explanatory Notes
mp = 1935 deg C; [MSDSonline]
Adverse Effects
Skin Sensitizer
Yes
Asthma
Yes
IARC Carcinogen
Possible (2b)
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: