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°C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Δ_f H_m^0(Li(NTO)·2H_2O,aq,298.15 K)和Δ_f H_m^0(Na(NTO)·H_2O,aq,298.15 K)的值.
The thermokinetics of the formation reactions of metal （Li, Na, Pb, Cu） salts of 3- nitre-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 △fH0m （Li（NTO）. 2H2O, aq, 298.15 K） and △f0m （Na（NTO）. 2H2O, aq, 298.15 K） are obtained.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2013年第10期2101-2106,共6页
Acta Physico-Chimica Sinica
基金
the National Natural Science Foundation of China(21173163)
Technology Foundation of Laboratory of Propellant and Explosive Combustion in China(9140C350307110C3506)~~
关键词
NTO金属盐
制备反应
微量热仪
热动力学
Metal salts of 3-nitro-1,2,4-triazol-5-one
Formation reaction
Microcalorimeter
Thermokinetics
