Chromium(III) sulfate

716.45 g/mol (octadecahydrate) Chromium(III) sulfate usually refers to the inorganic compounds with the formula Cr2(SO4)3.x(H2O), where x can range from 0 to 18. Additionally, ill-defined but commercially important 'basic chromium sulfates' are known. These salts are usually either violet or green solids that are soluble in water. It is commonly used in tanning leather. Chromium(III) sulfate usually refers to the inorganic compounds with the formula Cr2(SO4)3.x(H2O), where x can range from 0 to 18. Additionally, ill-defined but commercially important 'basic chromium sulfates' are known. These salts are usually either violet or green solids that are soluble in water. It is commonly used in tanning leather.