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Cobalt Chloride (CoCl2)-Granules

Cobalt Chloride (CoCl2)-Granules

CAS: 7646-79-9
Molecular Formula: CoCl2
Purity: 99.998%
Products Code: TR271700GN
Specification Model: - 100 mesh
Hazardous Class: Class 9
EINECS No.: 231-589-4
UN No.: UN3077
Package Class: PG III
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Cobalt Chloride (CoCl2)-Granules introduce:


Cobalt(II) chloride is an inorganic compound of cobalt and chlorine, with the formula CoCl2. It is a sky blue crystalline solid.

Chemical formula:CoCl2

Molar mass:129.839 g/mol (anhydrous)

                      165.87 g/mol (dihydrate)

                      237.93 g/mol (hexahydrate)

Appearance:blue crystals (anhydrous)

                       violet-blue (dihydrate)

                       rose red crystals (hexahydrate)

Density:3.356 g/cm3 (anhydrous)

                2.477 g/cm3 (dihydrate)

                1.924 g/cm3 (hexahydrate)

Melting point:726 °C (1,339 °F; 999 K) ±2 (anhydrous)

                          140 °C (monohydrate)

                          100 °C (dihydrate)

                          86 °C (hexahydrate)

Boiling point:1,049 °C (1,920 °F; 1,322 K)

Solubility in water:43.6 g/100 mL (0 °C)

                                 45 g/100 mL (7 °C)

                                 52.9 g/100 mL (20 °C)

                                 105 g/100 mL (96 °C)

Solubility:38.5 g/100 mL (methanol)

                   8.6 g/100 mL (acetone)

                   soluble in ethanol, pyridine, glycerol

Magnetic susceptibility (χ):+12,660·10−6 cm3/mol


Because of the ease of the hydration/dehydration reaction, and the resulting color change, cobalt chloride is used as an indicator for water in desiccants.

Niche uses of cobalt chloride include its role in organic synthesis and electroplating objects with cobalt metal.
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