Oxidation of Methionine by Sodium N-Chlorobenzene Sulphonamide in Hydrochloric Acid Medium: A Kinetic Study

Abstract

Kinetics of oxidation of DL-methionine (Met) in the presence
of HCl by sodium N-chlorobenzene sulphonamide (chloramine-B
or CAB) have been performed at 30°C. The rate shows a first order
dependence each on [CAB] and [H⁺] and zero order dependence
on [Met]. The variation of the ionic strength, dielectric constant of
the medium and addition of chloride ion and the reaction product
of CAB (benzene sulphonamide) do not have any significant effect
on the reaction rate. The activation parameters have been evaluated.