KINETICS AND MECHANISM OF THE OXIDATION OF SOME DIOLS BY CHROMIUM(VI) IN PERCHLORIC ACID MEDIUM

Article abstract of DOI:10.1016/S0040-4020(01)88176-X

Chromic acid oxidations of some diols have been studied in perchloric acid medium.The reactions are firstorder with respect to the diols and acid chromate ion.The rate increases with the increase in acidity but the orders with respect to perchloric acid are different (1.25-2.0).The rate of the oxidation reactions at = 1.0 M and temperature = 35 deg C, follow the order pinacol > 2.3-butane diol > ethylene glycol.The activation parameters of the oxidation reactions have been calculated.Plausible reaction mechanisms have been suggested.