Kinetics and Mechanism of Chromium (VI)Oxidation of Threonine in Aqueous PerchloricAcid Medium

The present paper describes the kinetics and mechanism of oxidation of threonine by chromium (VI) in aqueous perchloric acid medium at 45°C. The reaction is first order with respect to oxidant, substrate and acid concentration. The effect of chloride ion and ionic strength were found to be negligible. The dependence of rate on temperature has been studied and activation parameters have been evaluated and tend further support to the proposed mechanism. 2-Hydroxy propanaldehyde was identified as the oxidation product