Prediction of liquid-liquid phase diagrams of aqueous salt plus PEG systems using a thermodynamic model

被引：7

作者：

Salabat, Alireza ^{[1
]}

机构：

[1] Arak Univ, Dept Chem, Arak, Iran

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2006年 / 30卷 / 03期

关键词：

thermodynamic model; aqueous two-phase system; phase diagram; polymer-salt system;

D O I：

10.1016/j.calphad.2006.03.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study a thermodynamic model for the phase behavior of aqueous salt + polymer solutions is developed. The model is based on the solution theory of Hill, which included scaling laws for the polymer molecular mass dependence and Pitzer-Debye-Huckel theory. This model was tested for systems composed of two different molecular mass of polyethylene glycols (PEG) and five different inorganic salts. All the model parameters were determined from independent measurements. The agreement between the experimental and predicted phase diagrams by this model is good. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：296 / 300

页数：5

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