Liquid-liquid equilibria of aqueous two-phase systems containing polyethylene glycol and ammonium dihydrogen phosphate or diammonium hydrogen phosphate. Experiment and correlation

被引：34

作者：

Zafarani-Moattar, MT ^{[1
]}

Gasemi, J ^{[1
]}

机构：

[1] Univ Tabriz, Fac Chem, Dept Phys Chem, Tabriz, Iran

来源：

FLUID PHASE EQUILIBRIA | 2002年 / 198卷 / 02期

关键词：

liquid-liquid equilibrium; phase diagrams; polyethylene glycol; ammonium dihydrogen phosphate; diammonium hydrogen phosphate; osmotic virial equation;

D O I：

10.1016/S0378-3812(01)00805-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Phase diagrams and liquid-liquid equilibrium (LLE) data of the aqueous systems polyethylene glycol 6000 (PEG(6000))-ammonium dihydrogen phosphate and aqueous PEG(6000)-diammonium hydrogen phosphate have been determined experimentally at 298.15, 308.15 and 318.15 K. Furthermore, the osmotic virial equation was used to correlate the phase behavior of these systems. Good agreement was obtained with the experimental data. Finally, the effect of temperature and the type of salt on the LLE are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：281 / 291

页数：11

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