Excess molar volumes and excess molar heat capacities of (dimethyl carbonate, or diethyl carbonate plus n-heptane) at several temperatures

被引：48
|
作者：
Pardo, JM [1 ]
Tovar, CA [1 ]
Cerdeiriña, CA [1 ]
Carballo, E [1 ]
Romaní, L [1 ]
机构：
[1] Univ Vigo, Fac Ciencias, Dept Fis Aplicada, E-32004 Ourense, Spain
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 1999年 / 31卷 / 06期
关键词：
excess molar volumes; excess molar heat capacities; non-randomness; dialkyl carbonates; phase separation;
D O I：
10.1006/jcht.1999.0488
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Excess molar volumes were determined over the whole composition range for (dimethyl carbonate, or diethyl carbonate + n-heptane) at the temperatures (278.15, 288.15, 298.15, and 308.15) K, and at atmospheric pressure with a vibrating-tube densimeter. In addition, a differential scanning calorimeter was used to obtain excess isobaric molar heat capacities for the same mixtures at the temperatures (288.15, 298.15, and 308.15) K, and at atmospheric pressure. The influence of the upper critical solution temperature on the measured properties is also discussed. (C) 1999 Academic Press.
引用
收藏
页码：787 / 796
页数：10
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