Chromium(II) chloride, anhydrous

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

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)

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.