Kinetic and Mechanism of Uncatalytic Oxidation of Dl-Threonine by Cerium (Iv) in Aqueous Acid Medium
Gajanand Sahu
Department of Chemistry, Govt. N. P. G. College of Science, Raipur 492010 (C.G), India.
Sanjay Ghosh *
Department of Chemistry, Govt. N. P. G. College of Science, Raipur 492010 (C.G), India.
*Author to whom correspondence should be addressed.
Abstract
Kinetic of uncatalyzed oxidation of DL-Threonine has been studied by Ce (IV) in acidic medium has been investigatigated by spectrophotometer technique. The rate of reaction determined at three different temperatures ranging from 298 K to 318 K at the interval of 10 K. The reaction has been found to be a first order reaction in presence or in absence of KCl, CTAB, and SDS. The rate constant, decreases with increasing the concentration of [HSO4-] and [H+] ion. The various thermodynamic parameters were calculated at 298 K, 308 K and 318 K. The proposed mechanism and results is discussed.
Keywords: Kinetics, oxidation, DL-threonine, cerium (IV), sulphuric acid, KCl, mechanism