In addition, the chromium III chloride has a density of 2.87 g/cm3 and a mol mass of 158.36 g/mol. The melting point of the same is 1152 ☌, while the boiling point is about 1300 ☌. The chemical formula for the chromium III chloride is CrCl 3. Moreover, in a laboratory, the hydrates are usually prepared by dissolving the chromium metal or chromium oxide inside the hydrochloric acid. 6H 2O + 6 SOCl 2 → CrCl 3 + 6 SO 2 + 12 HClĪs a result of the treatment with hydrochloric acid and methanol at the same time, hydrated chlorides are formed.6H 2O + 12 Me 3SiCl → CrCl 3(THF)3 + 6 (Me 3Si)2O + 12 HClīy treating the hex hydrate with thionyl chloride, we can prepare it as follows:.The anhydrous chromium (III) chloride can be prepared directly by chlorinating chromium metal, or indirectly by carbo-thermic chlorinating chromium (III) oxide at 650–800☌:Īs a result of dehydration with trimethylsilyl chloride in THF, the following solvate is formed: This results in a flaky appearance of the crystals. The absence of cations in some layers weakens the bonding between adjacent layers, causing ease in cleaving along these planes. The anhydrous form of chromium (III) chloride features the YCl3 structure, where Cr3+ occupies a third of the octahedral interstices within an alternating pseudo-cubic close-packed lattice of Cl− ions. Chromium III Chloride FormulaĬrCl 3 is the molecular formula of Chromium iii Chloride. Now, let’s delve into the detailed formula for Chromium III Chloride.

These chromium chlorides are often utilized as catalysts and precursors to wool dyes. The most commonly used version is the hexahydrate form, which has a dark green color and the formula CrCl 3 The anhydrous form of this compound, with the formula CrCl 3, appears as a solid in a striking violet hue. xH 2O, where x can vary between 0, 5, and 6.Also known as chromic chloride, Chromium (III) chloride is a compound that has the formula CrCl 3

Chromium ii chloride hydrate