%A XU Kang-Zhen; ZHAO Feng-Qi; REN Ying-Hui; MA Hai-Xia; SONG Ji-Rong; HU Rong-Zu
%T Thermal Behavior, Specific Heat Capacity and Adiabatic Time-to-Explosion of 3,6-Dihydrazino-1,2,4,5-tetrazine
%0 Journal Article
%D 2009
%J Acta Phys. -Chim. Sin.
%R 10.3866/PKU.WHXB20090219
%P 309-313
%V 25
%N 02
%U {http://www.whxb.pku.edu.cn/CN/abstract/article_21240.shtml}
%8 2009-01-16
%X Thermal behavior of 3,6-dihydrazino-1,2,4,5-tetrazine (DHT) was studied by differential scanning calorimetry (DSC) and thermogravimetry-derivative thermogravimetry (TG-DTG), and the decomposition process can be divided into two exothermic decomposition stages. Values of the apparent activation energy (E) and pre-exponential constant (A) of the two exothermic decomposition stages are 154.8 and 123.4 kJ·mol-1, 1016.63 and 109.48 s-1, respectively. The critical temperature of thermal explosion is 426.10 K. The specific heat capacity of DHT was determined by the micro-DSC method and theoretical calculation method. The standard molar specific heat capacity was found to be 183.61 J·mol-1·K-1 at 298.15 K. The adiabatic time-to-explosion of DHT was calculated to be a certain value between 263.84 s and 297.58 s.