• Title/Summary/Keyword: diabatic time-to-explosion

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Non-isothermal Decomposition Kinetics of a New High-energy Organic Potassium Salt: K(DNDZ)

  • Xu, Kangzhen;Zhao, Fengqi;Song, Jirong;Ren, Xiaolei;Gao, Hongxu;Xu, Siyu;Hu, Rongzu
    • Bulletin of the Korean Chemical Society
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    • v.30 no.10
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    • pp.2259-2264
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    • 2009
  • A new high-energy organic potassium salt, 2-(dinitromethylene)-1,3-diazepentane potassium salt K(DNDZ), was synthesized by reacting of 2-(dinitromethylene)-1,3-diazepentane (DNDZ) and potassium hydroxide. The thermal behavior and non-isothermal decomposition kinetics of K(DNDZ) were studied with DSC, TG/DTG methods. The kinetic equation is $\frac{d{\alpha}}{dT}$ = $\frac{10^{13.92}}{\beta}$3(1 - $\alpha$[-ln(1 - $\alpha$)]$^{\frac{2}{3}}$ exp(-1.52 ${\times}\;10^5$ / RT). The critical temperature of thermal explosion of K(DNDZ) is $208.63\;{^{\circ}C}$. The specific heat capacity of K(DNDZ) was determined with a micro-DSC method, and the molar heat capacity is 224.63 J $mol^{-1}\;K^{-1}$ at 298.15 K. Adiabatic time-to-explosion of K(DNDZ) obtained is 157.96 s.