Cobalt Iodide (CoI2)-Beads

Characteristic




Cobalt(II) iodide or cobaltous iodide are the inorganic compounds with the formula CoI2 and the hexahydrate CoI2(H2O)6. These salts are the principal iodides of cobalt.




Chemical formula：CoI2

Molar mass：312.7421 g/mol (anhydrous)

                      420.83 g/mol (hexahydrate)

Appearance：α-form: black hexagonal crystal

                       β-form: yellow powder

Density：α-form: 5.584 g/cm3

                β-form: 5.45 g/cm3

hexahydrate: 2.79 g/cm3

Melting point：α-form: 515-520 °C under vacuum

                          β-form: converts to α-form at 400 °C

Boiling point：570 °C (1,058 °F; 843 K)

Solubility in water：67.0 g/100 mL

Magnetic susceptibility (χ)：+10,760·10−6 cm3/mol