Oxidation of para-Methoxy Benzaldehyde and Salicylaldehyde by N-Sodio-N-Chlorobenzene Sulphonamide (Chloramine-B) in Acid Medium: A Kinetic and Mechanistic Study

摘要

The kinetics of the oxidation of para-methoxy benzaldehyde and salicylaldehyde by chloramine-B (CAB) have been studied in hydrochloric acid medium at 303 K.The rate shows first order dependence on [CAB] and fractionl order in [aldehyde]. The rate increases with increase of [HCl] and shows first order dependence on [H~+] and [Cl-]. Variation of ionic strength, the addition of reaction product (benzene sulphonamide), and change in dielectric constant of the medium had no significat effect on the reaction rate. Thermodynamic parameters were evaluated.