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Journal of Thermal Analysis and Calorimetry

, Volume 138, Issue 5, pp 3023–3029 | Cite as

Thermodynamic properties of 1,3-di (azido-acetoxy)-2-methyl-2-nitropropane

  • Heng ZhangEmail author
  • Li YangEmail author
  • Peng Teng Cui
  • Feng Qi Zhao
  • Ying Lei Wang
  • Hong Xu Gao
Article
  • 32 Downloads

Abstract

The thermal decomposition behaviors of 1,3-di (azido-acetoxy)-2-methyl-2-nitropropane (DAMNP) under pressures of 0.1 MPa and 3.0 MPa were investigated by DSC techniques. The results showed that with the increase in pressure, the decomposition heat increased significantly, while the peak temperature increased slightly. The kinetic and thermodynamic parameters of exothermic decomposition reaction were obtained, and the iso-kinetic point was found as 192.0 °C. Using the thermal decomposition parameters, the self-accelerating decomposition temperature and the critical temperature of thermal explosion were calculated to be 190.10 °C and 202.58 °C, respectively. The specific heat capacity of DAMNP was studied with micro-DSC method, and the molar heat capacity was found to be 531.98 J mol−1 K−1. The adiabatic time-to-explosion was calculated to be 75.67 s. The combustion heat of DAMNP was determined with an oxygen bomb calorimeter, and the standard molar enthalpy of formation was calculated to be − 189.46 kJ mol−1. These results are important in evaluating the thermal stability and application prospects of DAMNP.

Keywords

1,3-Di (azido-acetoxy)-2-methyl-2-nitropropane Thermal behavior Thermal safety Standard molar enthalpy of formation 

Notes

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijingChina
  2. 2.Science and Technology on Combustion and Explosion LaboratoryXi’an Modern Chemistry Research InstituteXi’anChina

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