Effect of semiconducting metal oxide additives on the kinetics of thermal decomposition of sodium oxalate under isothermal conditions

► Effect of metal oxide additives on the kinetics of decomposition of Na2C2O4 by TG. ► Effect of pre-compressed metal oxide additives on the kinetics of thermal decomposition. ► Acceleratory and decay stages of the thermal decomposition follow different kinetic models. ► Rate of decomposition increases up to a metal oxide additive concentration of 1 wt% and then decreases. ► Pre-compressed metal oxide additives show similar effects as that of uncompressed metal oxide additives.