Thermal characterization of the promising energetic material TKX-50

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• 作者：Haifeng Huang ; Yameng Shi ; Jun Yang
• 关键词：Energetic material ; TKX ; 50 ; Thermal behavior
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：121
• 期：2
• 页码：705-709
• 全文大小：987 KB
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• 作者单位：Haifeng Huang (1)
  Yameng Shi (1)
  Jun Yang (1)
  
  1. Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, Shanghai, 200032, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943

文摘

The thermal behavior of dihydroxylammonium 5,5-bistetrazole-1,1-diolate (TKX-50) was measured by differential scanning calorimetry (DSC), thermal gravimetric analysis–Fourier transform infrared spectroscopy (TG-FTIR) and thermal gravimetric analysis–differential scanning calorimetry–mass spectrometry (TG-DSC-MS). The critical temperature of thermal explosion (T b) and the initial decomposition temperature (T p0) were determined to be 523.39 and 513.80?K, respectively. The apparent activation energy (E) and pre-exponential factor (A) of the exothermic decomposition reaction, and activation entropy (ΔS ?/sup>), activation enthalpy (ΔH ?/sup>), activation Gibbs free energy (ΔG ?/sup>) at T P0 of the reaction and the critical temperature of thermal explosion (T b) were calculated: E K?=?237.59?kJ?mol?, E O?=?234.11?kJ?mol?, ΔS ?/sup>?=?209.83?J?K??mol?, ΔH ?/sup>?=?233.32?kJ?mol?, ΔG ?/sup>?=?126.53?kJ?mol?. TG-DSC-FTIR/MS analysis of thermal decomposition products of TKX-50 reveals that the main decomposition products are N2, H2O, NH3, NH2, N2O and NO.