Kinetic Study on the Exothermic First-stage Decomposition Reaction of 2,4,8,10-Tetranitro-2,4,8,10-tetraazaspiro[5,5]undecane-3,9-dione
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摘要:
Under linear temperature increase condition the thermal behavior and kinetic parameters of the exothermic first-stage decomposition reaction of the title compound were studied by means of DSC and TG-DTG. The empirical kinetic model function in differential form, apparent activation energy and pre-exponential constant of this reaction are α0.122(1-α)0.528, 216.4 kJ·mol-1 and 1020.51 s-1, respectively. The critical temperature of thermal explo
sion of the compound is 222.25 ℃. The values of △≠S, △≠H, and △≠G and of this reaction are 108.3 J·mol-1·
K -1, 205.1 kJ·mol-1 and 151.4 kJ·mol-1, respectively.