Cobalt Hydroxide
Cobaltous Hydroxide
- CAS
- 21041-93-0
- EC
- 244-166-4
- Sectors
- Electronics & Solar PV, Building & Construction
Cobalt Hydroxide (CAS 21041-93-0) is an inorganic cobalt salt that appears as a pink to purple powder, obtained by precipitation from cobalt salt solutions, and serves as a precursor for cobalt oxides and pigments used in battery cathodes, ceramics and catalysts.
Typical Properties
| Molecular formula | CoH2O2 |
|---|---|
| Molecular weight | 92.95 g/mol |
| Form | Powder |
| Color | Pink to purple |
| Melting point | °Cd ec.) |
| Density | 3.59 g/cm³ |
| Water solubility | Soluble in acids and ammonia. Very slightly soluble in water. Insoluble in dilute alkalis. |
| pH | 9.15(1 mM solution);9.15(10 mM solution);9.15(100 mM solution) |
| GHS signal word | Danger · Acute toxicity, Health hazard |
| 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.
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Cobalt Hydroxide
Applications
Used in battery cathodes, ceramics, and catalysts. Also employed in the production of cobalt salts and as a drying agent for paints.
Safety & Risks
Toxic if inhaled or ingested; handle with gloves and masks. Avoid dust formation.
Packaging
Supplied in 25 kg fiber drums or PE bags. Store dry and sealed.