Solid-liquid phase equilibrium and thermodynamic analysis of prothioconazole in mono-solvents and binary solvents from 283.15 K to 313.15 K

被引：15

作者：

Zhang, Huihui ^{[1
]}

Yang, Yaoyao ^{[1
]}

Zhu, Minghe ^{[1
]}

Jiang, Shuang ^{[1
]}

Xu, Shijie ^{[1
]}

Du, Shichao ^{[1
]}

Yu, Bo ^{[1
]}

Gong, Junbo ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

[2] Coinnovat Ctr Chem & Chem Engn Tianjin, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2017年 / 240卷

基金：

中国国家自然科学基金;

关键词：

Prothioconazole; Solid-liquid equilibrium; Solubility; Thermodynamic model; Dissolution thermodynamics; ENTHALPY-ENTROPY COMPENSATION; WATER-ISOPROPANOL SOLUTION; SOLUBILITY DETERMINATION; PREFERENTIAL SOLVATION; MIXING PROPERTIES; ORGANIC-SOLVENTS; PART; PARACETAMOL; PREDICTION; ACID;

D O I：

10.1016/j.molliq.2017.05.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid-liquid phase equilibrium solubility of prothioconazole in seven mono-solvents and (2-propanol +/- cyclohexane, 1-butanol +/- cyclohexane) binary solvent mixtures was determined by gravimetric method from 283.15 K to 313.15 K at atmospheric pressure. The solubility of prothioconazole increased with increasing temperature in all tested solvents. In mono-solvents, the solubility values at a fixed temperature ranked as: 1-butanol > 1-propanol > 2-propanol > methanol > 2-butanol > acetonitrile > toluene. In binary solvent systems, the maximum solubility values were achieved at a certain solvent composition. The Apelblat equation, lambda h equation and NRTL model were employed to correlate the solubility data in mono-solvents, and the Apelblat equation in two binary solvent mixtures. The selected thermodynamic models can all give acceptable results. Furthermore, the apparent standard Gibbs free energy, enthalpy and entropy for the dissolution of prothioconazole were calculated, which indicates that the dissolution process of prothioconazole is an endothermic and entropy favorable process. (C) 2017 Published by Elsevier B.V.

引用

页码：162 / 171

页数：10

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