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 |
GREMONT CHEMICAL COMPANY LIMITED TEL NO : 886-2-2231-2360 E-MAIL : gremont.chem@msa.hinet.net |