A study on densities and excess volumes in the (γ-butyrolactone plus aromatic hydrocarbon) system at various temperatures

被引：15

作者：

Yang, Sheng-Kai ^{[1
]}

Peng, San-Jun

Huang, Jian-Hua

Fan, Li-Qun

Yang, Feng-Xia

机构：

[1] Henan Inst Sci & Technol, Coll Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China

[2] Changsha Univ Sci & Technol, Coll Chem & Environm Engn, Changsha 410076, Hunan, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2007年 / 39卷 / 05期

关键词：

gamma-butyrolactone; aromatic hydrocarbon; binary mixture; density; excess molar volume;

D O I：

10.1016/j.jct.2006.10.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Density of three binary mixtures formed by gamma-butyrolactone with benzene, or toluene, or ethylbenzene has been determined over the full range of compositions over the temperatures range (293.15 to 353.15) K and the local barometric pressure using a vibrating-tube densimeter. From these experiments, excess molar volumes (V-m(E)) have been calculated. It is found to be negative with a minimum at about the mole fraction of 0.5. Excess volumes were also fitted to a Redlich-Kister type equation. Our result shows V-m(E) decreases when temperature increases in the studied systems. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：773 / 780

页数：8

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