Chromium(III) Fluoride (CrF3)-Powder

Characteristic

 

Chromium(III) fluoride is the name for the inorganic compounds with the chemical formula CrF₃ as well as several related hydrates. The compound CrF₃ is a green crystalline solid that is insoluble in common solvents, but the coloured hydrates [Cr(H₂O)₆]F₃ and [Cr(H₂O)₆]F₃•3H₂O are soluble in water. The trihydrate is green, and the hexahydrate is violet. The anhydrous form sublimes at 1100–1200 °C.

Chemical formula:CrF₃

Molar mass : 108.9913 g/mol

Appearance: green crystalline solid

Density: 3.8 g/cm³ 

Melting point: 1,100 °C (2,010 °F; 1,370 K) (sublimes)

Solubility in water: negligible 

Solubility: insoluble in alcohols; soluble in HF, HCl

Magnetic susceptibility (χ): +4370.0•10−6 cm³/mol

Application

 

Chromium(III) fluoride finds some applications as a mordant in textiles and as a corrosion inhibitor. Chromium(III) fluoride catalyzes the fluorination of chlorocarbons by HF.