Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
674725 | Thermochimica Acta | 2010 | 5 Pages |
Abstract
The thermal decomposition behaviors of 3,4,5-triamino-1,2,4-triazole nitrate were studied using a C-500 type Calvet Micro-calorimeter at four different heating rates. Its apparent activation energy and pre-exponential factor of exothermic decomposition reaction are 137.16 kJ molâ1 and 1010.03 sâ1. The critical temperature of thermal explosion is 441.37 K. The entropy of activation (ÎSâ ), enthalpy of activation (ÎHâ ), and free energy of activation (ÎGâ ) of the decomposition reaction are â65.65 J molâ1 Kâ1, 132.97 kJ molâ1 and 166.35 kJ molâ1, respectively. The self-accelerating decomposition temperature (TSADT) is 429.56 K. The specific heat capacity was determined with a Micro-DSC method and a theoretical calculation method. Specific heat capacity (J gâ1 Kâ1) equation is Cp = 0.356 + 2.957 Ã 10â3T (283.1 K < T < 353.2 K). The adiabatic time-to-explosion is calculated to be a certain value between 702.22 s and 712.22 s. The critical temperature of Hot-Spot initiation is 600.325 °C, and the characteristic drop height of impact sensitivity (H50) is 27 cm.
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Authors
Xue Liang, Zhao Feng-Qi, Xing Xiao-Ling, Zhou Zhi-Ming, Wang Kai, Gao Hong-Xu, Yi Jian-Hua, Hu Rong-Zu,