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 |
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Pages (from-to) | 97-106 |
Number of pages | 10 |
Journal | Fluid Phase Equilibria |
Volume | 201 |
Issue number | 1 |
DOIs | |
State | Published - Aug 30 2002 |
Keywords
- Data
- Fluorinated solvents
- Liquid-liquid equilibria
- NRTL
- UNIQUAC
ASJC Scopus subject areas
- General Chemical Engineering
- General Physics and Astronomy
- Physical and Theoretical Chemistry