Thermal Decomposition of Potassium Trioxalato Chromate(III) Trihydrate: A Kinetic and Mechanistic Study

Abstract

Thermal decomposition of potassium trioxalato chromate(lll)
has been found to be involving dehydration, decomposition and
oxidation, when heated in air with heating rate programmed at 1/6
K s ^-1. The thermogravimetric data for the decomposition step has
been analysed for kinetic parameters using Freeman-Carroll and
Zsako methods. When  α-T data of dehydration and decomposition
steps were fed 10 computer for mechanistic analysis. both the steps
were found to be following 1-1 random —nucleation mechanism.