Department of Chemistry, DDU Gorakhpur University, Gorakhpur 273009, India.
J Hazard Mater. 2010 Jan 15;173(1-3):173-80. doi: 10.1016/j.jhazmat.2009.08.058. Epub 2009 Aug 22.
Nitrate and perchlorate salts of 2,4,6-trimethylaniline have been prepared and characterized by X-ray crystallography and gravimetric analyses. Their thermal decomposition has been studied by TG, TG-DSC and ignition/explosion delays. It has been observed that proton transfer from substituted anilinium ion to nitrate and perchlorate ion regenerate amine, HNO(3) and HClO(4) in condensed phase at higher temperature, where oxidation-reduction between amine and acids leads to ignition and explosion. The kinetics of thermal decomposition was evaluated by applying model fitting as well as isoconversional methods. The values of calculated activation energy of nitrate and perchlorate salts are 77.9 and 118.2 kJ mol(-1) respectively. The possible pathways of thermolysis of these salts have also been proposed.
已经通过 X 射线晶体学和重量分析制备和表征了 2,4,6-三甲基苯胺的硝酸盐和高氯酸盐。通过 TG、TG-DSC 和点火/爆炸延迟研究了它们的热分解。已经观察到，在较高温度下，取代苯胺离子中的质子转移到硝酸盐和高氯酸盐离子中，在凝聚相中重新生成胺、HNO(3)和 HClO(4)，其中胺和酸之间的氧化还原反应导致点火和爆炸。通过应用模型拟合和等转化率方法评估了热分解动力学。硝酸盐和高氯酸盐盐的计算活化能值分别为 77.9 和 118.2 kJ mol(-1)。还提出了这些盐热分解的可能途径。
