IJSR - International Journal of Scientific Research

Shilpa Rathor; B. K. Dangarh

Volume : VI, Issue : VIII, August - 2017

Oxidation of Glycine by Cr (Chromium) (VI) oxidants in DMF– H2O medium: A Comparative study

Shilpa Rathor, B. K. Dangarh

Abstract :

A comparative study of oxidation of glycine by different Cr (VI) oxidants [PCC, PDC, and QDC] has been studied in DMF–H₂O medium in the presence of perchloric acid spectrophotometrically. The reactions are found first order with respect to all three oxidants, [H⁺], and [glycine]. Michaelis–Menten type kinetics was observed. The reaction rate increased with increasing volume percentage of DMF in reaction mixture. The reaction was studied at different temperature [298–323K] & the activation parameters were computed. The oxidation product was identified as Cr (III) and formaldehyde. The oxidation rate order was found with respect to different oxidants are: PDC > PCC >QDC.