Cobalt II Chromite

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cobalt ii chromate is the chemical compound with the formula CoCrO4. It is a yellowish-brown powder that is soluble in mineral acids and solutions of chromium trioxide, but not in water. It is an oxidizing agent and can be used as a catalyst for organic reactions. In one example, it catalyzes the conversion of cyclohexanone to adipic acid under mild conditions.

The reaction can be initiated by adding a yellow 0.1M solution of potassium chromate (K2CrO4) to a pink 0.1M solution of cobalt nitrate (Co(NO3)2) to form the brown precipitate CoCrO4 + K2CrO4 -> CoCrO4 Co(NO3)2. A double replacement mechanism is also possible, in which the nitrate is converted to the hydrates Co(NO3)2*nH2O and Co(NO3)2nH2O, via the formation of an intermediate complex that decomposes into acrylonitrile and chromium ions.

American Elements manufactures cobalt ii chromate to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows relevant ASTM testing standards. Additional technical, research and safety (MSDS) information is available as well as a Reference Calculator for converting relevant units of measurement.