Abstract

The dehydration kinetic of potassium citrate monohydrate has been investigated by TG-DTG. The kinetic parameters of activation energy and pre-exponential factor were calculated using the methods of FWO and KAS. The results show that the kinetic parameters calculated by two methods were consistent. Meanwhile, the most probable kinetic function was acquires by means of the Malek method. The thermodynamic functions of the dehydration process are then calculated according to the transition theory, which indicate that the dehydration process of potassium citrate monohydrate is endothermic and non-spontaneous.

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