Chlorochromate, potassium

Filter the solution on a funnel for hot filtration and let it stand up to your next lesson. Filter off the formed crystals on a glass filter. Pay attention to the shape of the crystals and compare them with potassium dichromate crystals. Dissolve a small part of the crystals in water and establish what ions are present in the solution. What properties does potassium chlorochromate exhibit What class of chemical compounds does it belong to ... 

Orange potassium chlorochromate can be prepared simply by dissolving K2Cr207 in hot 6 M HC1 and crystallizing, or by chlorination of Cr202 with oxalylchloride. It can be recrystallized from HC1 but is hydrolyzed by water ... 

With concentrated hydrochloric acid, or with phosphorus trichloride, potassium chlorochromate is produced (g.v.). A compound, K2Cr20,. HgCl2, has been described. Compounds of dichromates and pyridine have been prepared. ... 

Potassium Chlorochromate, CrOj.OK.Gl, may be obtained [a) by warming together a mixture of potassium dichromate and concentrated hydrochloric acid b) by the action of ehromyl chloride upon a solution of potassium chloride or upon aqueous potassium chromate acidified with acetic acid (c) by fusion of potassium dichromate with chromic chloride or (d) by interaction of phosphorus trichloride and potassium dichroraate. ... 

Potassium chlorochromate crystallises in the monoclinic system (prismatic) ... 

Potassium chlorochromate KCr03CI 16037-60-6 174.646 oran cry 2.6 reac EIjO s ace, acid... 

W. P. Evans, when chromyl fluoride is heated E. Fremy, when heated potassium chromate is decomposed by chlorine W. Muller, when potassium chromate at a red-heat is decomposed by hydrogen chloride V. Kletzinsky, when potassium chlorochromate is melted J. C. Gentele, when potassium dichromate is decomposed at a high temp. R. Otto, when potassium dichromate is decomposed by hydrogen at an elevated temp. A. Ditte, and H. Schiff, when potassium didiromate is decomposed by fusion with sodium chloride and M. Prud homme, when potassium dichromate is heated. with tin. Crystals of chromic oxide are often produced as a kind of sublimate when mixtures containing chromic oxide are heated in closed vessels in pottery ovens. E. Wydler, and G. F. C. Frick also described the prepara-... 

E. M. Pdigot, a soln. of potassium dichromate in boiling hydrochloric acid deposits, on cooling, potassium chlorochromate. R. E de Lury, and G. Kernot and... 

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