Chromium(III) potassium sulphate dodecahydrate is deep violet-red crystals.Chromium potassium sulfate dodecahydrate is used in preparation of chromium standard solutions.
Chromium(III) potassium sulfate dodecahydrate (Potassium chromium(III) sulfate dodecahydrate, Chrome alum) is widely used chemical in dyeing and textile industry. It can be synthesized by reacting sulfur dioxide with potassium dichromate (dissolved in sulfuric acid) at -38°C