Excess molar enthalpies and excess molar volumes of binary mixtures containing dimethyl carbonate plus four butanol isomers at (288.15, 298.15, and 313.15) K

被引:40
作者
Francesconi, R
Comelli, F
机构
[1] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy
[2] CNR, Ctr Studio Fis Macromol, I-40126 Bologna, Italy
关键词
D O I
10.1021/je980124f
中图分类号
O414.1 [热力学];
学科分类号
摘要
Excess molar enthalpies, H-m(E), and excess molar volumes, V-m(E), of dimethyl carbonate + 1-butanol, + 2-butanol, + 2-methyl-1-butanol, and + 2-methyl-2-butanol have been determined at (288.15, 298.15, and 313.15) K and atmospheric pressure using a flow microcalorimeter and a digital density meter. Excess properties are positive over the entire experimental conditions, increasing as the temperature increases. Maxima values of H-m(E) vary from 2100 up to 2900 J.mol(-1). Those of V-m(E), vary from 0.57 up to 0.83 cm(3).mol(-1). Experimental data have been correlated using Redlich-Kister polynomials, and parameters from least-squares analysis have been reported.
引用
收藏
页码:44 / 47
页数:4
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