Open AccessTHE OXIDATION OF DL-ALANINE BY QDC IN PARTIAL NON-AQUEOUS MEDIUM – A KINETIC AND MECHANISTIC STUDY
Author(s) -
B. K. Dangarh Shilpa Rathor*
Publication year - 2017
Publication title -
zenodo (cern european organization for nuclear research)
Language(s) - English
DOI - 10.5281/zenodo.290137
Subject(s) - alanine , kinetic energy , chemistry , aqueous medium , aqueous solution , physics , biochemistry , amino acid , quantum mechanics
The present paper describe the kinetics of oxidation of Dl-alanine by QDC in the presence of perchloric acid in 30% DMF-H2O(v/v) medium at 40⁰C spectrophotometrically at λ max =354nm. The reaction is first order with respect to [QDC], [H+], and [substrate]. The reaction rate increased with increasing volume percentage of DMF in reaction mixture, suggesting the involvement of an ion and neutral molecule in the rate determining step. Michaelis- Menten type kinetic was observed with Dl-alanine. The reaction rates were studied at different temperature and the activation parameters has been computed. The main product were identified as Cr (III) and acetaldehyde