Characteristic
Chromium(II) chloride describes inorganic compounds with the formula CrCl2(H2O)n. The anhydrous solid is white when pure, however commercial samples are often grey or green
Chemical formula:CrCl2
Molar mass:122.90 g·mol−1
Appearance:White to grey/green powder (anhydrous), very hygroscopic
Odor:Odorless
Density 2.88 g/cm3 (24 °C)
Melting point:824 °C (1,515 °F; 1,097 K) anhydrous
51 °C (124 °F; 324 K) tetrahydrate, decomposes
Boiling point:1,302 °C (2,376 °F; 1,575 K) anhydrous
Solubility in water:Soluble
Solubility:Insoluble in alcohol, ether Acidity (pKa) 2
Magnetic susceptibility (χ):+7230·10−6 cm3/mol
Crystal structure:Orthorhombic
Application
Chromium(II) chloride has no commercial uses but is used on a laboratory-scale for the synthesis of other chromium complexes.