### 2-碘-3-硝基甲苯的低温热容和热力学性质

1. 武汉大学化学与环境科学学院;中国科学院大连化学物理研究所热化学实验室
• 出版日期:2000-11-15 发布日期:2000-11-15

### Low-temperature heat capacity and thermodynamic properties of 2-iodo- 3-nitrotoluene

Di Youying;Li Shuang;Meng Shuanghe;Tan Zhicheng;Qu Songsheng

• Online:2000-11-15 Published:2000-11-15

The heat capacity of 2-iodo-3-nitrotoluene was precisely determined with a small sample precision automated adiabatic calorimeter over the temperature range from 79 to 373K. A phase transition from solid to liquid was observed at the peak temperature of (339.311±0.035)K. The molar enthalpy and entropy of the phase transition as well as chemical urity of the substance were determined to be (20677.54±40. 09)J·mol^-^1, (61.04±0.13)J·mol^-^1·K^-^1 and 99.73%, respectively, on the basis of the heat-capacity measurements. the further research of solid-liquid phase transition for this compound were carried out by means of DSC technique.