Kinetics and mechanism of the oxidation of hypophosphorous acid by di-oxotetrakis(2,2/-bipyridyl)dimanganese (III,IV) perchlorate in  acid  medium

Authors

  • Y. N. Lohdip Department of Chemistry, University of Jos, Jos Author
  • N. J. Shamle Department of Chemistry, University of Jos, Jos Author

Keywords:

Kinetics, hypophosphorous acid, di-oxo-tetrakis(1,10-phenanthroline)dimanganese(III,IV) perchlorate

Abstract

The kinetic study of the oxidation of hypophosphorous acid by di-oxo-tetrakis(1,10-phenanthroline)dimanganese(III,IV) perchlorate in acid medium has been carried out at [H+] = 0.05 mol dm-3 (HCl), I = 0.50 mol dm-3 (NaCl), T = 27.5 +_ 1.0oC and y = 680 nm. The reaction obeys the rate law:  
 The rate increased with increase in acid concentration and decreased with increase in the ionic strength and dielectric constant of the reaction medium. The presence of added anions and cations had no affect the rate of reaction. A plausible mechanism is proposed.

Downloads

Published

2025-03-01

Issue

Vol. 1 No. 1 (2004): ChemClass Journal

Section

Articles