Liquid-liquid equilibria of a hydrofluoroether + water + ethanol system

Joel A. Luckman; Daniel C. Conrad; Barbara L. Knutson

doi:10.1016/S0378-3812(02)00071-7

Liquid-liquid equilibria of a hydrofluoroether + water + ethanol system

Joel A. Luckman, Daniel C. Conrad, Barbara L. Knutson

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The ability to manipulate the liquid-liquid equilibria (LLE) of a commercially available hydrofluoroether (HFE-7100®, an approximately equimolar mixture of the isomers methoxy-nonafluoroisobutane and methoxy-nonafluorobutane) + water with the addition of ethanol, which is mutually miscible with both solvents, was examined. LLE data were determined at 298, 308 and 323K for the system of HFE-7100®+water+ethanol. The UNIQUAC and NRTL excess Gibbs energy models were able to adequately represent the type I phase behavior observed over this temperature range. The goodness of the fit of each model was compared for temperature-dependent and temperature-independent binary interaction parameters.

Original language	English
Pages (from-to)	97-106
Number of pages	10
Journal	Fluid Phase Equilibria
Volume	201
Issue number	1
DOIs	https://doi.org/10.1016/S0378-3812(02)00071-7
State	Published - Aug 30 2002

Keywords

Data
Fluorinated solvents
Liquid-liquid equilibria
NRTL
UNIQUAC

ASJC Scopus subject areas

Chemical Engineering (all)
Physics and Astronomy (all)
Physical and Theoretical Chemistry

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10.1016/S0378-3812(02)00071-7

Cite this

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title = "Liquid-liquid equilibria of a hydrofluoroether + water + ethanol system",

abstract = "The ability to manipulate the liquid-liquid equilibria (LLE) of a commercially available hydrofluoroether (HFE-7100{\textregistered}, an approximately equimolar mixture of the isomers methoxy-nonafluoroisobutane and methoxy-nonafluorobutane) + water with the addition of ethanol, which is mutually miscible with both solvents, was examined. LLE data were determined at 298, 308 and 323K for the system of HFE-7100{\textregistered}+water+ethanol. The UNIQUAC and NRTL excess Gibbs energy models were able to adequately represent the type I phase behavior observed over this temperature range. The goodness of the fit of each model was compared for temperature-dependent and temperature-independent binary interaction parameters.",

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AU - Luckman, Joel A.

AU - Conrad, Daniel C.

AU - Knutson, Barbara L.

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N2 - The ability to manipulate the liquid-liquid equilibria (LLE) of a commercially available hydrofluoroether (HFE-7100®, an approximately equimolar mixture of the isomers methoxy-nonafluoroisobutane and methoxy-nonafluorobutane) + water with the addition of ethanol, which is mutually miscible with both solvents, was examined. LLE data were determined at 298, 308 and 323K for the system of HFE-7100®+water+ethanol. The UNIQUAC and NRTL excess Gibbs energy models were able to adequately represent the type I phase behavior observed over this temperature range. The goodness of the fit of each model was compared for temperature-dependent and temperature-independent binary interaction parameters.

AB - The ability to manipulate the liquid-liquid equilibria (LLE) of a commercially available hydrofluoroether (HFE-7100®, an approximately equimolar mixture of the isomers methoxy-nonafluoroisobutane and methoxy-nonafluorobutane) + water with the addition of ethanol, which is mutually miscible with both solvents, was examined. LLE data were determined at 298, 308 and 323K for the system of HFE-7100®+water+ethanol. The UNIQUAC and NRTL excess Gibbs energy models were able to adequately represent the type I phase behavior observed over this temperature range. The goodness of the fit of each model was compared for temperature-dependent and temperature-independent binary interaction parameters.

KW - Data

KW - Fluorinated solvents

KW - Liquid-liquid equilibria

KW - NRTL

KW - UNIQUAC

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Liquid-liquid equilibria of a hydrofluoroether + water + ethanol system

Abstract

Keywords

ASJC Scopus subject areas

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