Potassium chlorochromate, CrO 2 Cl OK, is produced when potassium bichromate is heated with concentrated hydrochloric acid and a little water, or from chromium oxychloride and saturated potassium chloride solution, when - it separates as a red crystalline salt.
Sodium chromate, Na 2 CrO 4.10H20, forms pale yellow crystals isomorphous with hydrated sodium sulphate, Na2S04.10H20.
Oxyhalogen derivatives of chromium are known, the oxychloride, CrO 2 C1 21 resulting on heating potassium bichromate and common salt with concentrated sulphuric acid.
This page gives an overview of all articles in the 1911 Brittanica which are alphabetized under Cro to Cun.
Chromium trioxide dissolves readily in water, and the solution is supposed to contain chromic acid, H 2 CrO 4; the salts of this acid are known as the chromates.