Thermal behavior and safety of dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate

The thermal decomposition behaviors of dihydroxylammonium 5,5′-bistetrazole-1,1′- diolate (TKX-50) were studied by using a C-500 type Calvet microcalorimeter at five heating rates. The kinetic and thermodynamic parameters of the first decomposition reaction were obtained. The specific heat capacity...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2016, Vol.123 (1), p.653-657
Hauptverfasser: Xiao, Li-Bai, Zhao, Feng-Qi, Luo, Yang, Li, Na, Gao, Hong-Xu, Xue, Yong-Qiang, Cui, Zi-Xiang, Hu, Rong-Zu
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Sprache:eng
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Zusammenfassung:The thermal decomposition behaviors of dihydroxylammonium 5,5′-bistetrazole-1,1′- diolate (TKX-50) were studied by using a C-500 type Calvet microcalorimeter at five heating rates. The kinetic and thermodynamic parameters of the first decomposition reaction were obtained. The specific heat capacity of TKX-50 was determined with a Micro-DSCIII calorimeter, and the specific heat capacity equation and the molar specific heat capacity at 298.15 K were also obtained. The self-accelerating decomposition temperature and the critical temperature of thermal explosion are 466.17 and 475.36 K, respectively. The adiabatic time-to-explosion is calculated to be a certain value between 112.65 and 113.93 s.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-015-4830-7