PRODUCT Properties
| Melting point: | 724 °C(lit.) |
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| Boiling point: | 1049 °C |
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| Density | 3.35 |
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| vapor pressure | 40 mm Hg ( 0 °C) |
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| Flash point: | 500°C |
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| storage temp. | Store below +30°C. |
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| solubility | 585.9g/l soluble |
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| form | beads |
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| color | Pale blue |
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| Specific Gravity | 3.356 |
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| PH | pH (50g/l, 25℃) : >=3.0 |
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| Water Solubility | soluble |
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| Sensitive | Hygroscopic |
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| Crystal Structure | CdCl2 type |
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| crystal system | Three sides |
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| Sublimation | 500 ºC |
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| Merck | 14,2437 |
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| Space group | R3m |
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| Lattice constant |
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| Exposure limits | ACGIH: TWA 0.02 mg/m3 |
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| Stability: | hygroscopic |
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| CAS DataBase Reference | 7646-79-9(CAS DataBase Reference) |
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| NIST Chemistry Reference | Cobalt dichloride(7646-79-9) |
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| EPA Substance Registry System | Cobalt chloride (CoCl2) (7646-79-9) |
Description and Uses
blue crystals (anhydrous)
violet-blue (dihydrate)
rose red crystals (hexahydrate)
Sinks and mixes with water. Pale blue leaflets, turns pink upon exposure to moist air.
Cobalt chloride (CoCl2) is used to manufacture vitamin B12, even though the compound itself can cause damage to red blood cells. It is also used as a dye mordant (to fix the dye to the textile so that it will not run). It is also of use in manufacturing solid lubricants, as an additive to fertilizers, as a chemical reagent in laboratories, and as an absorbent in gas masks, electroplating, and the manufacture of vitamin B12.
Safety
| Symbol(GHS) |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302-H317-H334-H341-H350i-H360F-H410 |
| Precautionary statements | P202-P273-P280-P301+P312-P302+P352-P308+P313 |
| Hazard Codes | T,N |
| Risk Statements | 49-42/43-52/53-50/53-22-68-41-60-51/53 |
| Safety Statements | 53-23-36/37-45-60-61-22-39-26 |
| RIDADR | UN 2923 8/PG 3 |
| WGK Germany | 2 |
| RTECS | GF9800000 |
| F | 9-21 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 28273930 |
| Hazardous Substances Data | 7646-79-9(Hazardous Substances Data) |
| Toxicity | LD50 in mice, rats (mg/kg): 360.0, 171.0 orally; 92.6, 36.9 i.p.; 23.3, 4.3 i.v. (Singh, Junnarkar) |
