Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 116, Issue 2, Pages 817-823Publisher
SPRINGER
DOI: 10.1007/s10973-013-3589-y
Keywords
1,1-Diamino-2,2-dinitroethylene (FOX-7); Zinc complex; Nonisothermal decomposition kinetics; Specific-heat capacity; Adiabatic time-to-explosion
Funding
- National Natural Science Foundation of China [21241003, 20803058]
- Education Committee Foundation of Shaanxi Province [2013JK0697]
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A new energetic zinc-FOX-7 complex, Zn(NH3)(2)(FOX-7)(2) (FOX-7 = 1,1-diamino-2,2-dinitroethylene), was first synthesized. Thermal decomposition behavior and nonisothermal decomposition kinetics of Zn(NH3)(2)(FOX-7)(2) were studied with DSC and TG/DTG methods. The kinetic equation obtained is . The self-accelerating decomposition temperature (T (SADT)) and critical temperature of thermal explosion (T (b)) are 183.2 and 195.8 A degrees C, respectively. The specific-heat capacity of Zn(NH3)(2)(FOX-7)(2) was determined with a micro-DSC method, and the molar-heat capacity is 454.6 J mol(-1) K-1 at 298.15 K. Adiabatic time-to-explosion was also estimated to be about 20 s. The thermal stability of Zn(NH3)(2)(FOX-7)(2) is good and higher than that of analogous Cu(NH3)(2)(FOX-7)(2).
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