Thermodynamic models for determination of the solid-liquid equilibrium of 2,5-thiophenedicarboxylic acid in (acetic acid plus ethanol) binary solvent mixtures

被引：4
|
作者：
Hu, Yonghong [1 ]
Yang, Yang [1 ]
Cao, Yang [2 ]
Li, Yonglan [3 ]
Yang, Wenge [1 ]
Cheng, Limin [1 ]
机构：
[1] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Nanjing 210000, Jiangsu, Peoples R China
[2] Jiangsu Prov Hosp, Nanjing 210000, Jiangsu, Peoples R China
[3] Taiyuan Qiaoyou Chem Ind Co Ltd, Taiyuan 030025, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2015年 / 403卷
关键词：
2,5-Thiophenedicarboxylic acid; Apelblat equation; CNIBS/R-K; Jouyban-Acree model; van't Hoff analysis; SOLUBILITY; WATER; METHANOL;
D O I：
10.1016/j.fluid.2015.06.007
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, the solid-liquid equilibrium (SLE) of 2,5-thiophenedicarboxylic acid in (acetic acid + ethanol) binary solvent mixtures was explored at temperatures ranging from 283.15 K to 328.15 K under atmosphere pressure. For the temperature range investigated, the equilibrium solubility varies with the composition of the solvent and temperature. The equilibrium solubility data were then modelled using modified Apelblat equation, a variant of the combined nearly ideal binary solvent/Redlich-Kister (CNIBS/R-K) model and Jouyban-Acree model. Computational results showed that the modified Apelblat equation and CNIBS/R-K model have the low MD (mean deviation). In addition, the thermodynamic properties of the solution process, including the Gibbs energy, enthalpy, and entropy were calculated by the van't Hoff analysis. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：43 / 48
页数：6
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