物理化学学报 >> 2013, Vol. 29 >> Issue (10): 2101-2106.doi: 10.3866/PKU.WHXB201307153

热分析动力学和热动力学 上一篇    下一篇

3-硝基-1,3,4-三唑-5-酮金属(Li, Na, Pb, Cu)盐的制备反应热动力学

李娜, 赵凤起, 高红旭, 胡荣祖, 肖立柏, 姚二岗, 黄新萍, 常佩   

  1. 西安近代化学研究所, 燃烧与爆炸技术重点实验室, 西安 710065
  • 收稿日期:2013-06-03 修回日期:2013-07-15 发布日期:2013-09-26
  • 通讯作者: 赵凤起 E-mail:npecc@163.com
  • 基金资助:

    国家自然科学基金(21173163)和燃烧与爆炸技术重点实验室基金(9140C350307110C3506)资助项目

Thermokinetics of the Formation Reactions of Metal (Li, Na, Pb, Cu) Salts of 3-Nitro-1,2,4-triazol-5-one

LI Na, ZHAO Feng-Qi, GAO Hong-Xu, HU Rong-Zu, XIAO Li-Bai, YAO Er-Gang, HUANG Xin-Ping, CHANG Pei   

  1. Laboratory of Science and Technology on Combustion and Explosion, Xi'an Modern Chemistry Research Institute, Xi'an 710065, P. R. China
  • Received:2013-06-03 Revised:2013-07-15 Published:2013-09-26
  • Contact: ZHAO Feng-Qi E-mail:npecc@163.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21173163) and Technology Foundation of Laboratory of Propellant and Explosive Combustion in China (9140C350307110C3506).

摘要:

在常压、298.15 K条件下, 用RD496-2000微量热仪开展了3-硝基-1,3,4-三唑-5-酮(NTO)金属(Li, Na,Pb, Cu)盐制备反应的热动力学研究, 得到了反应过程中的热力学参数(活化焓、活化熵和活化自由能), 速率常数和动力学参数(活化能、指前因子和反应级数), 还得到了在25-40℃范围内NTO金属(Li, Na, Pb, Cu)盐制备反应过程的反应焓. 结果表明, NTO金属(Li, Na, Pb, Cu)盐的制备反应较容易发生. 基于Hess定律, 得到了ΔfHm0 (Li(NTO)·2H2O, aq, 298.15 K)和ΔfHm0 (Na(NTO)·H2O, aq, 298.15 K)的值.

关键词: NTO金属盐, 制备反应, 微量热仪, 热动力学

Abstract:

The thermokinetics of the formation reactions of metal (Li, Na, Pb, Cu) salts of 3-nitro-1,2,4-triazol- 5-one (NTO) was studied using a microcalorimeter. On the basis of experimental and calculated results, three thermodynamic parameters (activation energy, pre-exponential constant, and reaction order), rate constant, three thermokinetic parameters (activation enthalpy, activation entropy, and activation free energy) and the enthalpies of the reactions to prepare the metal salts of NTO in the temperature range of 25-40℃ were obtained. The title reactions occur easily in the studied temperature range. Based on Hess' law, the values of ΔfHm0 (Li(NTO)·2H2O, aq, 298.15 K) and ΔfHm0 (Na(NTO)·2H2O, aq, 298.15 K) are obtained.

Key words: Metal salts of 3-nitro-1,2,4-triazol-5-one, Formation reaction, Microcalorimeter, Thermokinetics

MSC2000: 

  • O643