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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 10
BKCSDE 30(10)
October 20, 2009 

Non-isothermal Decomposition Kinetics of a New High-energy Organic Potassium Salt: K(DNDZ)
Kangzhen Xu*, Fengqi Zhao*, Jirong Song, Xiaolei Ren, Hongxu Gao, Siyu Xu, Rongzu Hu
1,1-Diamino-2,2-dinitroethylene (FOX-7), 2-(Dinitromethylene)-1,3-diazepentane (DNDZ), Non-isothermal decomposition kinetics, Specific heat capacity, Adiabatic time-to-explosion
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 dα/dT = 1013.92/β*3(1-α)[-ln(1 - α)]2/3 exp(-1.52 × 105 / RT). The critical temperature of thermal explosion of K(DNDZ) is 208.63 oC. 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.
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