Kinetic investigation of the oxidation of N-alkyl anilines by peroxomonophosphoric acid in anionic surfactant sodium laurylsulphate

Kinetics of oxidation of N-methyl and N-ethyl aniline by peroxomonophosphor ic acid (PMPA) in aqueous and 5% (v/v) acetonitrile medium respectively hav e been studied in presence of anionic micelles of sodium lauryl sulphate (S LS) at different pH. Oxidation rate of both the substrates increases up to a certain [SLS] much below the critical micellar concentration (cmc) after which the rate is retarded. Kinetic data have been used to compute the bind ing constants of both substrate and oxidant with the micelle. A scheme expl aining the kinetic data has been proposed.