KINETICS OF OXIDATION OF ALIPHATIC PRIMARY AMINES BY CAB IN ALKALINE MEDIUM CATALYZED BY β –CYCLODEXTRINE

Abstract

Kinetics of oxidation of a typical aliphatic primary amines namely n-propyl amine (nPA) and n-butyl amine (nBA) by Chloramine –B(CAB) has been studied in alkaline medium using β- Cyclodextrine(βCD) as catalyst at 50 oC. The rate shows first order dependence of rate on CAB and zero order dependence of rate on both [amine] which tends to fractional order dependence of rate on catalyst was observed, when [OH- ] = 0.01 mol dm-3. The reaction is almost independent of [OH-] and other effects, like chloride, sulphate ions, Benzenesulphonamide(BSA). Effect of ionic strength and dielectric constant of medium has also been studied. The reaction has been studied at different temperatures and a mechanism conforming to the kinetic observations is suggested