OXIDATIVE DECOMPOSITION KINETICS OF BENZANILIDE BY IMIDAZOLIUM FLUOROCHROMATE

Abstract

The kinetics of oxidation of benzanilide by imidazolium fluorochromate (IFC) has been studied in 65% water - 35% acetic acid medium. The reaction is first order with each in imidazolium fluorochromate and hydrogen ion concentration. The reaction is second order with respect to benzanilide.The rate of the reaction increases with decrease in dielectric constant of solvent suggests ion-dipole interaction. Increase in ionic strength by the addition of sodium perchlorate has no effect on the rate of the reaction. There is no polymerization with acrylonitrile and absence of free radical mechanism was proved. Azobenzene has been identified as a main product of oxidation. The rate of the reaction has been conducted at five different temperatures and thermodynamic parameters have been calculated. Based on the kinetic results plausible mechanism has been proposed.