Cobalt Chloride
Cobalt Dichloride, Cobaltous Chloride
- CAS
- 7646-79-9
- EC
- 231-589-4
- Sectors
- Home Care & Industrial Cleaning, Electronics & Solar PV
Cobalt Chloride (CAS 7646-79-9) is an inorganic cobalt salt that appears as pale blue beads or blue to ruby-red crystals and, in hydrated form, turns from purple to blue when dehydrated; it is used as a humidity indicator, catalyst, reagent in chemical synthesis, and in electroplating and pigment production. It is highly soluble in water and ethanol.
Typical Properties
| Molecular formula | Cl2Co |
|---|---|
| Molecular weight | 129.84 g/mol |
| Appearance | (1) Blue, (2) ruby-red crystals.Soluble in water, alcohol, and acetone. |
| Form | beads |
| Color | Pale blue |
| Odor | Slight sharp odor |
| Melting point | 735 °C |
| Boiling point | 1049 °C |
| Density | 3.36 g/cm³ @ Temp: 25 °C |
| Water solubility | soluble |
| Flash point | 500°C |
| pH | pH (50g/l, 25°C) : >=3.0 |
| GHS signal word | Danger · Corrosive, Acute toxicity, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28273930 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Cobalt Chloride
Applications
Used as a humidity indicator, catalyst, and reagent in chemical synthesis. Also applied in electroplating and pigment production.
Safety & Risks
Toxic and irritant; suspected carcinogen. Handle under ventilation with protective gear.
Packaging
Delivered in 25 kg drums or PE-lined bags. Store sealed, cool, and dry.