Chromium(III) chloride hexahydrate (CrCl3•6H2O)-Crystalline

Characteristic

 

Chromium(III) chloride (also called chromic chloride) describes any of several compounds of with the formula CrCl₃ • xH2O, where x can be 0, 5, and 6. The anhydrous compound with the formula CrCl₃ is a violet solid. The most common form of the trichloride is the dark green hexahydrate,  CrCl₃ • 6H2O.

Chemical formula：CrCl₃ • 6H2O

Molar mass：266.45 g/mol 

Appearance：dark green 

Density： 1.760 g/cm³

Melting point：83 °C 

Boiling point：1,300 °C (2,370 °F; 1,570 K) decomposes

Solubility in water：585 g/L 

Solubility：insoluble in ethanol;insoluble in ether, acetone

Acidity (pKa):2.4 (0.2M solution)

Magnetic susceptibility (χ):+6890.0·10⁻⁶ cm³/mol

Crystal structure:YCl₃ structure

 

Application

 

Chromium(III) chloride hexahydrate is used as a catalyst, as a mordant in printing and dyeing industry. It is involved in the preparation of anhydrous tetrahydrofuran complex of chromium(III) chloride by reacting with trimethylsilylchloride. It finds application in the manufacturing of a variety of chromium-containing pigment in Paint industry and other chromium salts in the chemical industry.