Journal of Thermal Analysis and Calorimetry

, Volume 133, Issue 3, pp 1563–1569 | Cite as

Thermal decomposition and thermal stability of potassium 3,3′-dinitrimino-5,5′-bis(1H-1,2,4-triazole)

  • Fang Bao
  • Gongzheng Zhang
  • Shaohua Jin
  • Yuping Zhang
  • Lijie Li


Potassium 3,3′-dinitrimino-5,5′-bis(1H-1,2,4-triazole) (K2DNABT), a new potential green primary explosive, was synthesized and characterized by IR spectroscopy, multinuclear NMR spectroscopy and single-crystal X-ray diffraction. The thermal decomposition and thermal stability of K2DNABT were investigated by the thermogravimetric differential thermal analysis and accelerating rate calorimeter. The thermal decomposition kinetic parameters (apparent activation energy and pre-exponential factor) under non-isothermal condition were calculated by Starink method. The initial decomposition temperature (Tp0) and critical temperature of thermal explosion (Tbp0) were calculated as 279.06 and 298.53 °C, respectively. The apparent activation energy and pre-exponential factor under adiabatic condition were also calculated. The self-heating decomposition started at 280.46 °C and ended at 295.42 °C, within the time span of 162.50 min. The self-accelerating decomposition temperature (TSADT, 50kg) was calculated as 276.55 °C. The detonation velocity (7.59 km s−1) and pressure (27.84 GPa) of K2DNABT were evaluated by Kamlet–Jacob equations. The superior calculated energetic performance shows that it can be considered as a potential candidate of lead-based primary explosives.


Potassium 3,3′-dinitrimino-5,5′-bis(1H-1,2,4-triazole) Thermal decomposition Thermal stability K2DNABT ARC 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Fang Bao
    • 1
  • Gongzheng Zhang
    • 1
  • Shaohua Jin
    • 2
  • Yuping Zhang
    • 3
  • Lijie Li
    • 2
  1. 1.School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijingChina
  2. 2.School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina
  3. 3.Petroleum DepartmentChengde Petroleum CollegeChengdeChina

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