Non-Isothermal gravimetric experiments in different conditions were made, by applying high temperature differential thermal balance methods and using calcium carbonate as a model substance. The kinetic parameters calculated by improved integration method and Goats-Redfern method were compared. It was also determined that activation energy and frequency factor of the decomposition of calcium carbonate were 250~370kJ/mol and 2.65×10~(10)~3.49×10~(19), respectively. The decomposition rate is controlled by the ...