Application of thermogravimetric techniques to reaction kinetics

Abstract An easier technique for the determination of reaction constants such as order, energy of activation, and frequency factor from the thermogravimetric data has been described. The method requires two TGA curves obtained with different sample weights under similar reaction conditions. Applicability of the method to complex reactions, where simultaneous decomposition occurs, has been discussed. Reaction constants for different steps of the decomposition of calcium oxalate monohydrate are evaluated.