Kinetics and mechanism of the exothermic first-stage decomposition reaction for 1,4-dinitro-3,6-bis(trinitroethyl) glycoluril

详细信息    查看全文

• 作者：Rongzu ; Hu ; Desuo ; Yang ; Hongan ; Zhao ; Shengli ; Gao ; Qizhen ; Shi
• 关键词：Decomposition ; 1 ; 4-Dinitro-3 ; 6-bis(trinitroethyl) glycoluril ; DSC ; Kinetics ; Mechanism ; TG
• 刊名：Thermochimica Acta
• 出版年：2002
• 出版时间：July 1, 2002
• 年：2002
• 卷：389
• 期：1-2
• 页码：65-69
• 全文大小：95.5 K

文摘

Under linear temperature increase condition the thermal behaviour, mechanism and kinetic parameters of the exothermic first-stage decomposition reaction of the title compound have been studied by means of DSC, TG-DTG and IR. The reaction mechanism could be expressed by the following . The apparent activation energy, pre-exponential constant and reaction order of this reaction are 203.1kJmol⁻¹, 10^19.9s⁻¹ and 0, respectively. The critical temperature of thermal explosion of the compound is 191.4°C. The values of ΔS^≠ ΔH^≠ and ΔG^≠of this reaction are 132.5Jmol⁻¹, 199.09 and 138.74kJmol⁻¹, respectively.