中国物理B ›› 2008, Vol. 17 ›› Issue (3): 1088-1093.doi: 10.1088/1674-1056/17/3/056

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Fusion curves and thermodynamic properties of carbon tetrachloride, chloroform, bromoform and silicon tetrachloride at pressure up to 3500Mpa

朱荣娇, 徐伟, 田宜灵, 郝纪双   

  1. Department of Chemistry, Institute of Science, Tianjin University, Tianjin 300072, China
  • 收稿日期:2007-05-19 修回日期:2007-08-17 出版日期:2008-03-04 发布日期:2008-03-04
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 20476071).

Fusion curves and thermodynamic properties of carbon tetrachloride, chloroform, bromoform and silicon tetrachloride at pressure up to 3500Mpa

Zhu Rong-Jiao(朱荣娇), Xu Wei(徐伟), Tian Yi-Ling(田宜灵)†, and Hao Ji-Shuang(郝纪双)   

  1. Department of Chemistry, Institute of Science, Tianjin University, Tianjin 300072, China
  • Received:2007-05-19 Revised:2007-08-17 Online:2008-03-04 Published:2008-03-04
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 20476071).

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摘要： The fusion temperature as a function of pressure for carbon tetrachloride, chloroform, bromoform and silicon tetrachloride at pressures up to 3500MPa has been determined. The experimental data were fitted by the equation $T_{{\rm fus}} = T_0 (1 + \Delta p / a_1 )^{a_2 }\exp ( - a_3 \Delta p)$ and the changes of the molar enthalpy and molar internal energy on fusion were calculated using the parameters of the fitted equation. Comparisons with the data from the literature show that the experimental data, parameters of fitted equations, changes of the molar enthalpy and molar internal energy are reliable.

Abstract: The fusion temperature as a function of pressure for carbon tetrachloride, chloroform, bromoform and silicon tetrachloride at pressures up to 3500MPa has been determined. The experimental data were fitted by the equation $T_{{\rm fus}} = T_0 (1 + \Delta p / a_1 )^{a_2 }\exp ( - a_3 \Delta p)$ and the changes of the molar enthalpy and molar internal energy on fusion were calculated using the parameters of the fitted equation. Comparisons with the data from the literature show that the experimental data, parameters of fitted equations, changes of the molar enthalpy and molar internal energy are reliable.

Key words: fusion curve, molar entropy change, molar internal energy change, high pressure

中图分类号:  (Solid-liquid transitions)

  • 64.70.D-
62.50.-p (High-pressure effects in solids and liquids) 65.20.-w (Thermal properties of liquids)