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Research Journal of Pharmacy and Technology
Year : 2018, Volume : 11, Issue : 10
First page : ( 4679) Last page : ( 4682)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2018.00856.9

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

Sasikala R.1,*, Subash B.2

1Assistant Professor, Department of Chemistry, School of Basic Sciences, Vels Institute of Science Technology and Advanced Studies (Vels University), Pallavaram, 600117, Tamil Nadu, India

2Department of Chemistry, St. Joseph's College of Engineering, Chennai, Tamilnadu, 600119, India

*Corresponding Author E-mail: sasiaru16@gmail.com.

Online published on 20 December, 2018.

Abstract

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

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Keywords

Glycine, PMS, Copper (II), Homogeneous catalysis, Neutral medium.

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