Cobalt Chloride
Hexahyrdate
| PROPERTIES & USAGE | ||
| Properties | Usage | |
| Chemical formula | CoCl2 | Invisible ink |
| Molar mass | 129.839 g/mol (anhydrous) | |
| 165.87 g/mol (dihydrate) | ||
| 237.93 g/mol (hexahydrate) | ||
| Density | 3.356 g/cm3 (anhydrous) | |
| 2.477 g/cm3 (dihydrate) | ||
| 1.924 g/cm3 (hexahydrate) | ||
| Melting point | 735 °C (1,355 °F; 1,008 K) (anhydrous) | |
| 140 °C (monohydrate) | ||
| 100 °C (dihydrate) | ||
| 86 °C (hexahydrate) | ||
| Boiling point | 1,049 °C (1,920 °F; 1,322 K) | |
| SPECIFICATION | ||
| Specification | : | hexayrdate |
| Purity (% min.) | : | 98 |
| Fe (% max.) | : | 0.003 |
| Cu (% max.) | : | 0.003 |
| Pb (% max.) | : | 0.003 |
| Zn (% max.) | : | 0.003 |
| Ni (% max.) | : | 0.2 |
| Na (% max.) | : | 0.05 |
| K (% max.) | : | 0.05 |
| Ca (% max.) | : | 0.01 |
| SO4 (% max.) | : | 0.01 |
| pH (50g/l)(min.) | : | 4 |