| Agent Name |
Cobaltous chloride |
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| CAS Number |
7646-79-9 |
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| Formula |
Cl2-Co |
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| Major Category |
Metals |
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| Synonyms |
Cobalt chloride (CoCl2); Cobalt muriate; Cobalt(II) chloride; Cobaltous dichloride; Dichlorocobalt; Kobalt chlorid (German); Cobalt dichloride; [ChemIDplus] UN3288 |
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| Category |
Metals, Inorganic Compounds |
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| Description |
Pale-blue hygroscopic solid; Turns pink in moist air; [Merck Index] Blue granules with a chlorine-like smell and soluble in water; [MSDSonline] |
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| Sources/Uses |
Used in invisible inks, humidity indicators, temperature indicators, catalysts, electroplating, glass and porcelain pigments, fertilizers, feed additives, poison gas absorbents, and veterinary medication; [Merck Index] Used as a flux (magnesium refining), lubricant, and dye mordant; Also used in barometers and as a laboratory reagent; [Hawley] |
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| Comments |
An eye irritant; May cause skin sensitization and asthma after prolonged contact; [ICSC] The anhydrous form is very hygroscopic and converts into the hexahydrate form in moist air, changing color from blue to red. [Ullmann] 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 = 724 deg C;[MSDSonline] |
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| Adverse Effects |
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| Asthma |
Yes |
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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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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: COBALTOUS CHLORIDE
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