Kinetics of the Metal Ion Oxidation of Phenyl Phosphonous acid in Solution : Part III Oxidation by Manganese (Ill)

Physical Chemistry Section. Jadavpur University, Calcutta-32

Manuscript received 30 July 1974; accepted 30 December 1974

Kinetics of the oxidation of phenyl phosphonous acid by manganese (Ill) in sulphuric acid has been studied. The reaction has been found to be of first order with respect to both phenyl phosphonous acid and manganese (Ill). Hydrogen ions retard the rate of reaction. The addition of sodium sulphate and increase in dielectric constant enhance the rate of reaction. A suitable mechanism for the oxidation process has been proposed.