Thermal Behaviors of 2-（Dinitromethylene）-1,3- diazacycloheptane （DNDH）

2-（Dinitromethylene）-1,3-diazacycloheptane （DNDH） was prepared by the reaction of 1,1-diamino-2,2-dinitro- ethylene （FOX-7） with 1,4-diaminoethane in NMP. Thermal decomposition behavior of DNDH was studied under the non-isothermal conditions with DSC method, and presents only one intensely exothermi...

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Published in中国化学：英文版 Vol. 29; no. 8; pp. 1576 - 1582
Main Author 吕磊 徐抗震 王刚 罗金安 宋纪蓉 王伯周 赵凤起
Format Journal Article
LanguageEnglish
Published 2011
Subjects
DSC方法
反应动力学方程
摩尔热容量
热分解行为
热行为
理论计算方法
硝基乙烯
非等温条件
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Summary:2-（Dinitromethylene）-1,3-diazacycloheptane （DNDH） was prepared by the reaction of 1,1-diamino-2,2-dinitro- ethylene （FOX-7） with 1,4-diaminoethane in NMP. Thermal decomposition behavior of DNDH was studied under the non-isothermal conditions with DSC method, and presents only one intensely exothermic decomposition process The kinetic equation of the decomposition reaction is da/dT= 103388× 3a2/3exp（--3.353 ×10^5/RT）/fl. The critical temperature of thermal explosion is 215.97℃. Specific heat capacity of DNDH was studied with micro-DSC method and theoretical calculation method, and the molar heat capacity is 215.40 Jomol-1,K-1 at 298.15 K. Adiabatic time-to-explosion was calculated to be 92.07 s. DNDH has same thermal stability to FOX-7.
Bibliography:2-（dinitromethylene）-l,3-diazacycloheptane （DNDH）, l,l-diamino-2,2-dinitroethylene （FOX-7）, ther-mal behavior, nitrogen heterocycles, thermochemistry
31-1547/O6
Lu, Lei Xu, Kangzhen Wang, Ganga Luo, Jinan Song, Jirong Wang, BozhouC Zhao, FengqiC（ College of Chemistry and Chemical Engineering, Yan＇an University, Yan＇an, Shaanxi 716000, China b Department of Chemical Engineering, Northwest University, Xi＇an, Shaanxi 710069, China c Xi＇an Modern Chemistry Research Institute, Xi ＇an, Shaanxi 710065, China）
2-（Dinitromethylene）-1,3-diazacycloheptane （DNDH） was prepared by the reaction of 1,1-diamino-2,2-dinitro- ethylene （FOX-7） with 1,4-diaminoethane in NMP. Thermal decomposition behavior of DNDH was studied under the non-isothermal conditions with DSC method, and presents only one intensely exothermic decomposition process The kinetic equation of the decomposition reaction is da/dT= 103388× 3a2/3exp（--3.353 ×10^5/RT）/fl. The critical temperature of thermal explosion is 215.97℃. Specific heat capacity of DNDH was studied with micro-DSC method and theoretical calculation method, and the molar heat capacity is 215.40 Jomol-1,K-1 at 298.15 K. Adiabatic time-to-explosion was calculated to be 92.07 s. DNDH has same thermal stability to FOX-7.
ISSN:1001-604X
1614-7065