Liquid-liquid equilibria of aqueous two-phase systems containing polyethylene glycol and sodium dihydrogen phosphate or disodium hydrogen phosphate - Experiment and correlation

被引：123

作者：

Zafarani-Moattar, MT ^{[1
]}

Sadeghi, R ^{[1
]}

机构：

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

来源：

FLUID PHASE EQUILIBRIA | 2001年 / 181卷 / 1-2期

关键词：

liquid-liquid equilibrium; phase diagram; polyethylene glycol; sodium dihydrogen phosphate; disodium hydrogen phosphate; osmotic virial equation;

D O I：

10.1016/S0378-3812(01)00373-9

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 polyethylene glycol (PEG)-sodium dihydrogen phosphate and aqueous PEG-disodium hydrogen phosphate systems have been determined experimentally at 298.15, 308.15 and 318.15 K for two different molecular weights of the polymer (1000 and 6000). 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, the polymer molecular weight and the type of salt on the LLE are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：95 / 112

页数：18

相关论文

共 50 条

[31] Liquid-Liquid Equilibria of an Aqueous Two-Phase System Formed by a Triblock Copolymer and Sodium Salts at Different Temperatures [J].

Martins, Joao Paulo ;

Mageste, Aparecida Barbosa ;

Hespanhol da Silva, Maria do Carmo ;

Mendes da Silva, Luis Henrique ;

Patricio, Pamela da Rocha ;

dos Reis Coimbra, Jane Selia ;

Minim, Luis Antonio .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2009, 54 (10) :2891-2894

[32] Phase Diagrams for Aqueous Two-Phase Systems Containing the 1-Ethyl-3-methylimidazolium Tetrafluoroborate/1-Propyl-3-methylimidazolium Tetrafluoroborate and Trisodium Phosphate/Sodium Sulfite/Sodium Dihydrogen Phosphate at 298.15 K: Experiment and Correlation [J].

Yu, Cuilan ;

Han, Juan ;

Hu, Shiping ;

Yan, Yongsheng ;

Li, Yanfang .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2011, 56 (09) :3577-3584

[33] Partitioning of L-methionine in aqueous two-phase systems containing poly(propylene glycol) and sodium phosphate salts [J].

Salabat, Alireza ;

Sadeghi, Rahmat ;

Moghadam, Somayeh Tiani ;

Jamehbozorg, Bahman .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2011, 43 (10) :1525-1529

[34] Measurements and thermodynamic modelling of liquid-liquid equilibrium of PEG 6000-phosphate affinity aqueous two-phase systems at various ligand concentrations and pH [J].

Fakhari, Mohamad Ali ;

Rahimpour, Farshad .

PHYSICS AND CHEMISTRY OF LIQUIDS, 2020, 58 (04) :483-499

[35] Porcine pancreatic lipase partition in potassium phosphate-polyethylene glycol aqueous two-phase systems [J].

Bassani, Georgina ;

Farruggia, Beatriz ;

Nerli, Bibiana ;

Rornanini, Diana ;

Pico, Guillermo .

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, 2007, 859 (02) :222-228

[36] Liquid-Liquid Equilibrium and Thermodynamic Modeling of Aqueous Two-Phase System Containing Polypropylene Glycol and NaClO4 at T = (288.15 and 298.15) K [J].

Hamta, Afshin ;

Mohammadi, Asma ;

Dehghani, Mohammad Reza ;

Feyzi, Farzaneh .

JOURNAL OF SOLUTION CHEMISTRY, 2018, 47 (01) :1-25

[37] Measurement and correlation of phase equilibria in aqueous two-phase systems containing functionalized magnetic ionic liquids and potassium phosphate at different temperatures [J].

Yao, Tian ;

Zang, Huimin ;

Yao, Shun ;

Dai, Xuezhi ;

Song, Hang .

JOURNAL OF MOLECULAR LIQUIDS, 2018, 263 :72-80

[38] Liquid-liquid equilibria of ionic liquid N-ethylpyridinium tetrafluoroborate plus trisodium citrate/ammonium citrate tribasic/sodium succinate/sodium tartrate aqueous two-phase systems at 298.15 K [J].

Li, Yuliang ;

Yang, Liheng ;

Zhao, Xuewei ;

Guan, Weisheng .

THERMOCHIMICA ACTA, 2012, 550 :5-12

[39] Liquid-Liquid Equilibria of Aqueous Two-Phase Systems Containing Sodium Hydroxide plus Poly(ethylene glycol) of (1450, 4000, or 10 000) g.mol-1 at (288.2, 298.2, and 308.2) K [J].

Diniz, Renata S. ;

Souza, Evaldo C., Jr. ;

Coimbra, Jane S. R. ;

de Oliveira, Eduardo B. ;

da Costa, Angelica Ribeiro .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2012, 57 (02) :280-283

[40] Liquid-Liquid Equilibrium in an Aqueous Two-Phase System of Polyethylene Glycol 6000, Sodium Sulfate, Water, Glucose, and Penicillin-G: Experimental and Thermodynamic Modeling [J].

Roosta, Aliakbar ;

Jafari, Fateme ;

Javanmardi, Jafar .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2016, 61 (01) :565-570

← 1 2 3 4 5 →