| Agent Name |
Cobaltic-cobaltous oxide |
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| CAS Number |
1308-06-1 |
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| Formula |
Co3-O4 |
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| Major Category |
Metals |
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| Synonyms |
Cobalt tetraoxide; Cobalto-cobaltic oxide; Cobalto-cobaltic tetroxide; Cobaltosic oxide; Tricobalt tetraoxide; Tricobalt tetroxide; Cobalt oxide (Co3O4); Cobalt(II,III) oxide; [ChemIDplus] |
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| Category |
Metals, Inorganic Compounds |
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| Description |
Black or grey solid; [Merck Index] Black powder, insoluble in water; [MSDSonline] |
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| 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] |
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| Comments |
Harmful if swallowed; May cause skin sensitization; [MSDSonline] See "Cobalt." |
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| Exposure Assessment |
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| BEI |
Cobalt in urine = 15 ug/L; cobalt in blood = 1 ug/L; sample at end of shift at end of workweek; |
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| TLV (ACGIH) |
0.02 mg/m3, as Co |
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| Explanatory Notes |
mp = 900 deg C; [MSDSonline] |
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| Adverse Effects |
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| Skin Sensitizer |
Yes |
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| IARC Carcinogen |
Possible Carcinogen |
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| Links to Other NLM Databases |
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