Asian Journal of Research in Chemistry

  • Year: 2018
  • Volume: 11
  • Issue: 2

Electrochemical behaviour of In(III) with Isoleucine in aqueous and nonaqueous media at Dropping Mercury Electrode

1Assistant Professor, Department of Chemistry, Uka Tarsadia University, Bardoli, Gujarat, INDIA

2Assistant Professor, Department of Pure & Applied Chemistry, University of Kota, Kota, Rajasthan, INDIA

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

Online published on 2 June, 2018.

Abstract

Studies of In(III) metal with Isoleucine have been carried out by Polarographic method in non-aqueous (20%, 40%, DMSO) medium under varying temperatures at 308K and 318K. Potassium Nitrate was used as a supporting electrolyte. The reduction of In(III) was found to be quasi-reversible in non-aqueous medium. Isoleucine ligand has shown the formation of 1: 1, 1: 2 and 1: 3 complexes. DeFord and Hume method has been applied for the determination of composition and stability constants of the complex species. The changes in thermodynamic parameters ΔH°, ΔG°, ΔS°, accompanying complexation have been evaluated. The mathematical Mihailov's method has also been applied for the comparison of stability constants values.

Keywords

In(III), Isoleucine, Stability Constant