Thermal behavior, specific heat capacity and adiabatic time-to-explosion of G(FOX-7).
[H(2)N=C(NH(2))(2)](+)(FOX-7)(-)-G(FOX-7) was prepared by mixing FOX-7 and guanidinium chloride solution in potassium hydroxide solution. Its thermal decomposition was studied under the non-isothermal conditions with DSC and TG/DTG methods. The apparent activation energy (E) and pre-exponential constant (A) of the two exothermic decomposition stages were obtained by Kissinger's method and Ozawa's method, respectively. The critical temperature of thermal explosion (T(b)) was obtained as 201.72 degrees C. The specific heat capacity of G(FOX-7) was determined with Micro-DSC method and theoretical calculation method and the standard molar specific heat capacity is 282.025 J mol(-1) K(-1) at 298.15 K. Adiabatic time-to-explosion of G(FOX-7) was also calculated to be a certain value between 13.95 and 15.66 s.
Xu
Kangzhen
K
Department of Chemical Engineering, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi'an 710069, PR China. xukz@nwu.edu.cn
Song
Jirong
J
Zhao
Fengqi
F
Ma
Haixia
H
Gao
Hongxu
H
Chang
Chunran
C
Ren
Yinghui
Y
Hu
Rongzu
R
D002152:Calorimetry, Differential Scanning; D053834:Explosive Agents; D006358:Hot Temperature; D008958:Models, Molecular; D013816:Thermodynamics
D053834:Explosive Agents