Vapor-liquid equilibria for isobutane+pentafluoroethane (HFC-125) at 293.15 to 313.15 K and +1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) at 303.15 to 323.15 K

Byung Gwon Lee, Ji Young Park, Jong Sung Lim, Youn Woo Lee, Chang Ha Lee

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Isothermal vapor-liquid equilibria were determined for binary systems of pentafluoroethane (HFC-125)+isobutane (R600a) at 293.15, 303.15 and 313.15 K and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea)+isobutane (R600a) at 303.15, 313.15 and 323.15 K in a circulation-type equilibrium apparatus. The experimental data were well correlated with the Peng-Robinson-Stryjek-Vera (PRSV) equation of state combined with the NRTL excess Gibbs free-energy model and Huron-Vidal original mixing rules.

Original languageEnglish
Pages (from-to)760-763
Number of pages4
JournalJournal of Chemical and Engineering Data
Issue number5
Publication statusPublished - 2000 Sep 1


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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