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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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2016, Vol.123 (1), p.653-657
Main Authors: Xiao, Li-Bai, Zhao, Feng-Qi, Luo, Yang, Li, Na, Gao, Hong-Xu, Xue, Yong-Qiang, Cui, Zi-Xiang, Hu, Rong-Zu
Format: Article
Language:English
Subjects:
Adiabatic flow
Analytical Chemistry
Calorimetry
Chemistry
Chemistry and Materials Science
Decomposition (Chemistry)
Explosions
Heating rate
Inorganic Chemistry
Mathematical analysis
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Specific heat
Thermal decomposition
Thermal properties
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Summary: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