Effect of Anionic Micelle on the Oxidation of DL-Alanine by Chloramine-T

Abstract

Micellar rate enhancement and inhibition are generally treated on the assumption that water and micelles behave as distinct reaction media, i.e., pseudophase. The kinetics of oxidation of DL-alanine by sodium N-chloro-4-methyl benzene sulphonamide (chloramine-T) (1) in the presence of the detergent, sodium dodecyl sulphate (NaDS) (2) which forms anionic micelles has been studied. The reaction has first order with respect to oxidant and zero order with respect to substrate concentration. The positive effect of chloride ion, Hg²⁺ and solvent (methanol) on the rate is observed. The probable reaction mechanism consistent with the observed laws has been proposed.