Effect of temperature on the solubility of 3-aminopyridine in binary ethanol plus toluene solvent mixtures

被引：56
|
作者：
Wei, Dongwei [1 ]
Li, Hui [1 ]
Li, Ya-Nan [1 ]
Zhu, Jing [1 ]
机构：
[1] Tianjin Univ, Res & Dev Ctr Petrochem Technol, Tianjin 300072, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2012年 / 316卷
关键词：
Solubility; Solid-liquid equilibrium; Phase equilibrium; 3-Aminopyridine; N-BUTYL ACETATE; 2-AMINOPYRIDINE; ACETONE;
D O I：
10.1016/j.fluid.2011.11.023
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The solubility of 3-aminopyridine in (ethanol + toluene) mixed solvents has been measured between 283.15 and 323.15 K at intervals of 5.00K by a static analytical method. Nonlinear dependences were found for the variation of solubility with temperature. The nonlinear van't Hoff equation was proposed for correlating the experimental data. The apparent molar enthalpies of 3-aminopyridine in the solvent mixtures were determined from the temperature dependence of the solubilities. The values for the apparent Gibbs energy and the apparent entropy of solution are calculated. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：132 / 134
页数：3
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