Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/58135
Type: Artigo de periódico
Title: Thermodynamic modelling of phase equilibrium for water plus poly(ethylene glycol) plus salt aqueous two-phase systems
Author: Se, RAG
Aznar, M
Abstract: The NRTL (nonrandom, two-liquid) model, expressed in mass fraction instead of mole fraction, was used to correlate liquid-liquid equilibria for aqueous two-phase polymer-salt solutions. New interaction energy parameters for this model were determined using reported data on the water + poly(ethylene glycol) + salt systems, with different molecular masses for PEG and the salts potassium phosphate, sodium sulfate, sodium carbonate and magnesium sulfate. The correlation of liquid-liquid equilibrium is quite satisfactory.
Subject: aqueous two-phase systems
liquid-liquid equilibrium
polymers
salts
NRTL model
Country: Brasil
Editor: Brazilian Soc Chemical Eng
Rights: aberto
Identifier DOI: 10.1590/S0104-66322002000200006
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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