KINETICS OF THE NONISOTHERMAL DECOMPOSITION OF CU-ITACONATO AND CO-ITACONATO COMPLEXES

The kinetics of the thermal decomposition of Cu- and Co-itaconato comp lexes were studied using dynamic thermogravimetric techniques. The deh ydration process was found to proceed in a one-stage reaction, while t he thermal decomposition of the anhydrous salts was followed a two-sta ge reaction. The first stage is the decomposition of the complex to me tal carbonate, whereas the second stage is the decomposition of the fo rmed carbonate to the oxide. Kinetic analysis of the dynamic TG curves were discussed with reference to a composite integral method on compa rison with the integral methods of Coats and Redfern and Ozawa. The ac tivation parameters were calculated and discussed for each decompositi on step.