The Catalyzed Decomposition of Ammonium Perchlorate
YIN Cui mei, LIU Zi ru, KONG Yang hui (Xi′an Modern Chemistry Research Institute, Xi′an 710065, China)
The influences of multiple catalysts and an energetic catalyst on thermal decomposition of ammonirm perchlorate (AP) at various pressures were investigated by pressure differential thermal analysis (PDTA). The influence of three catalysts used to this study on the high temperature decomposition is independent of the grain size of AP. On the basis of the kinetic parameters of decomposition, it was interpreted that there is the different catalytic mechanism in the decomposition of AP at various pressures. The pressure exponents of burn of the propellants can be related to the rates of the catalyzed decomposition of AP at various pressures.