Oxidative Degradation of Glycine by Peroxomonosulphate at Neutral Medium-Catalytic effect of Copper (II)

Kinetics and mechanism of copper (II) catalyzed and uncatalyzed oxidation of glycine (gly) by
peroxomonosulphate (PMS) in neutral medium (phosphate buffer, pH 6-8) was studied at 278 K. The rate of the
reaction increased with increase in pH values. The rate was first order in [Cu (II)] and [gly], and zero order in
[PMS]. Variation of ionic strength did not have any effect on the rate of the reaction. The effect of dielectric
constant on the rate constant was negligible ruling out the formation of polar intermediate. The reaction between
PMS and glycine exhibited 1:1 stoichiometry. The product of the reaction was confirmed by IR and UV Visible
spectral studies