A Comparative Study on the Kinetics of Oxidation of Thiodiglycollic Acid by Pyridinium Chlorochromate and Cerie Ammonium Nitrate.

Abstract

The rate of reaction of thiodiglycollic acid (TDA) with the oxidants pyridinium chlorochromate (PCC) and ceric ammonium nitrate (CAN) have been measured at different temperatures in acetic acid-water mixtures. In both the cases of study the order of the reaction is found to be one each with respect to oxidant and substrate, decrease of dielectric constant favours the rate, variation of ionic strength not affected the rate and increases of [H⁺] favours the rate, while addition of acrylonitrile shows dissimilar observation, Suitable mechanisms and rate laws have been proposed for both the cases.