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Paper Details

Effect of Temperature on Redox Reactions of ?-Hydroxy Acids By Permonosulphuric Acid in Micellar Medium: A Kinetic and Mechanistic Study

P.Rajkumar a,b* and K.Subramanib

Journal Title:Journal of Chemical, Biological and physical sciences
Abstract


The Oxidation of mandelic acid, lactic acid and glycolic acid by Permonosulphuric acid at 60 0.2C in micellar medium has been attempted. The reaction is first order kinetics each in PMS and ?-hydroxy acids. The rate of electron transfer from ?-hydroxy acids to PMS increases with an increase in the concentration of micells and Temperature. It rules out the synchronous C-C bond fission and electron transfer to proton centre. With increase in micells concentration an increase in the rate is observed. The product and stoichiometry corresponds to the reaction of 1 mole of ?-hydroxy acids for about 1 mole of PMS. The added CTAB enhances the rate of oxidation of a reaction much more than NaLS.

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