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." |
Exposure Assessment |
BEI |
Cobalt in urine = 15 ug/L; cobalt in blood = 1 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 |
IARC Carcinogen |
Possible Carcinogen |
Links to Other NLM Databases |
|
|