The multi-plot above is a TG-DTA measurement result showing a pulverized and a non-pulverized (original state) sulphamic acid. Comparing both samples, degradation reaction starts at low temperature for the pulverized sample than the non-pulverized sample, also differences in exothermic peak sizes near 230℃ is seen. In this manner, a difference in the thermal behavior is observed called mechanochemical effect when mechanical energy is applied to the sample by pulverization.