Potassium chlorochromate is an inorganic compound with the formula KCrO3Cl. It is the potassiumsalt of chlorochromate, [CrO3Cl]−. It is a water-soluble orange compound is used occasionally for oxidation of organic compounds. It is sometimes called Péligot's salt, in recognition of its discoverer Eugène-Melchior Péligot.
The salt consists of the tetrahedral chlorochromate anion. The average Cr=O bond length is 159 pm, and the Cr-Cl distance is 219 pm.
Although air-stable, its aqueous solutions undergo hydrolysis. With concentrated hydrochloric acid, it converts to chromyl chloride. When treated with 18-crown-6, it forms the lipophilic salt [K(18-crown-6]CrO3Cl.