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| Kinetics and Mechanism of the Exothermic First-stage Decomposition Reaction of Dinitroglycoluril | |
| 引用本文： | 赵凤起,胡荣祖,陈沛,罗阳,高胜利,宋纪蓉,史启祯. Kinetics and Mechanism of the Exothermic First-stage Decomposition Reaction of Dinitroglycoluril[J]. 中国化学, 2004, 22(7): 649-652. DOI: 10.1002/cjoc.20040220707 |
| 作者姓名： | 赵凤起 胡荣祖 陈沛 罗阳 高胜利 宋纪蓉 史启祯 |
| 作者单位： | Xi'an Modern Chemistry Research Institute，Xi'an，Shaanxi，710065 China Department of Chemistry，Northwest University，Xi'an，Shaanxi，710069 China，Xi'an Modern Chemistry Research Institute，Xi'an，Shaanxi，710065 China Department of Chemistry，Northwest University，Xi'an，Shaanxi，710069 China，Xi'an Modern Chemistry Research Institute，Xi'an，Shaanxi，710065 China，Xi'an Modern Chemistry Research Institute，Xi'an，Shaanxi，710065 China，Department of Chemistry，Northwest University，Xi'an，Shaanxi，710069 China，Department of Chemistry，Northwest University，Xi'an，Shaanxi，710069 China，Department of Chemistry，Northwest University，Xi'an，Shaanxi，710069 China |
| 基金项目： | Project supported by the Science and Technology Foundation of Shaanxi Key Laboratory of Physico-Inorganic Chemistry (No. 29-3，2001) and the Science and Technology Foundation of the National Defense Key Laboratory of Propellant and Explosive Combustion |
| 摘 要： | Introduction Dinitroglycoluril (DINGU) is a typical cyclourea nitramine. Its crystal density is 1.94 gcm-3. The detonation velocity corresponding to =1.94 gcm-3 is about 8450 ms-1. Its sensitivity to impact is better than that of cyclotrimethylenetrinitramine. It has the potential for possible use as high explosive from the point of view of the above-mentioned high performance. Its preparation,1-4 properties1-4 and hydrolytic behavior4 have been reported. In the present paper, we report i… |
| 关 键 词： | 热动力学 反应机理 热分解反应 差示扫描量热法 反应温度 二硝基甘油代联脲 |
Kinetics and Mechanism of the Exothermic First-stage Decomposition Reaction of Dinitroglycoluril |
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| ZHAO,Feng-Qia,bHU,Rong-Zu,a,b CHEN,Peia LUO,Yanga GAO,Sheng-Lib SONG,Ji-Rongb SHI,Qi-Zhenb a Xi'an Modern Chemistry Research Institute,Xi'an,Shaanxi, China b. Kinetics and Mechanism of the Exothermic First-stage Decomposition Reaction of Dinitroglycoluril[J]. Chinese Journal of Chemistry, 2004, 22(7): 649-652. DOI: 10.1002/cjoc.20040220707 | |
| Authors: | ZHAO Feng-Qia bHU Rong-Zu a b CHEN Peia LUO Yanga GAO Sheng-Lib SONG Ji-Rongb SHI Qi-Zhenb a Xi'an Modern Chemistry Research Institute Xi'an Shaanxi China b |
| Affiliation: | ZHAO,Feng-Qia,bHU,Rong-Zu*,a,b CHEN,Peia LUO,Yanga GAO,Sheng-Lib SONG,Ji-Rongb SHI,Qi-Zhenb a Xi'an Modern Chemistry Research Institute,Xi'an,Shaanxi,710065 China b Department of Chemistry,Northwest University,Xi'an,Shaanxi,710069 China |
| Abstract: | Under linear temperature increase condition, the thermal behavior, mechanism and kinetic parameters of the exothermic decomposition reaction of the title compound have been studied by means of DSC and IR. The initial stage of the mechanism was proposed. The empirical kinetic model function in differential form, apparent activation energy and pre‐exponential constant of the exothermic decomposition reaction are a 0.526, 207.0 kJ·mol?1 and 1018.49s‐1, respectively. The critical temperature of thermal explosion of the compound is 252.87 °C. The values of ΔS≠, ΔH≠ and ΔG≠ of the reaction are 128.4 J·mol‐1.K?1, 218.9 kJ·mol?1 and 152.7 kJ·mol?1, respectively. |
| Keywords: | decomposition dinitroglycoluril DSC kinetics mechanism |
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