Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (10): 2101-2106.doi: 10.3866/PKU.WHXB201307153


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
  • 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).


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


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