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Citation: XU Kang-Zhen, ZHAO Feng-Qi, REN Ying-Hui, MA Hai-Xia, SONG Ji-Rong, HU Rong-Zu. Thermal Behavior, Specific Heat Capacity and Adiabatic Time-to-Explosion of 3,6-Dihydrazino-1,2,4,5-tetrazine[J]. Acta Physico-Chimica Sinica, ;2009, 25(02): 309-313. doi: 10.3866/PKU.WHXB20090219 shu

Thermal Behavior, Specific Heat Capacity and Adiabatic Time-to-Explosion of 3,6-Dihydrazino-1,2,4,5-tetrazine

1.
Xi’an Modern Chemistry Research Institute, Xi’an 710065, P. R. China; College of Chemical Engineering, Northwest University, Xi’an 710069, P. R. China; 3Conservation Technology Department, the Palace Museum, Beijing 100009, P. R. China

Received Date: 28 August 2008
Available Online: 8 December 2008

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.
- 3,6-Dihydrazino-1,2,4,5-tetrazine; Thermal behavior; Specific heat capacity; Adiabatic time-to-explosion
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