Liquid-liquid equilibria for the ternary systems of perfluorohexane or perfluamine + hydrofluoroether + tetrahydrofuran at 298.15 K or 273.15 K

Tae Gyu Lee, Seo Young Kim, Kwang Ho Song, Jaehoon Choe, Ji Hyeon Kim

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A number of ternary systems with two fluorinated solvent mixtures and tetrahydrofuran (THF) were studied. The perfluorinated solvent phase consisted of perfluorohexane (FC72) or perfluamine (FC3283) with hydrofluoroether (HFE7100, HFE7300, and HFE7500). Hydrofluoroether was added to perfluorohexane or perfluamine to tune the fluorophilicity of the fluorous phase. The temperature dependence of the liquid-liquid equilibrium was investigated at two different temperatures, 298.15 K and 273.15 K. The immiscibility region at 273.15 K was larger than that at 298.15 K. The NRTL and UNIQUAC models yielded good correlation for the 10 ternary systems, including FC72 + HFE7100 + THF, FC72 + HFE7300 + THF, FC72 + HFE7500 + THF, FC3283 + HFE7300 + THF, and FC3283 + HFE7500 + THF.

Original languageEnglish
Pages (from-to)2035-2043
Number of pages9
JournalJournal of Chemical and Engineering Data
Issue number7
Publication statusPublished - 2013 Jul 11


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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