Effect of pressure on the vapor - liquid equilibria of the system methanol + ethyl 1,1-dimethylethyl ether

Jaime Wisniak, Lilach Aharon, Yakov Nagar, Hugo Segura, Ricardo Reich

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Vapor-liquid equilibrium has been determined at 94 and 70 kPa for the binary system methanol+ethyl 1, 1-dimethylethyl ether. The system deviates positively from ideal behavior and presents a minimum boiling azeotrope at 329 K with 57% mole methanol (94 kPa) and at 322 K with 52% mole methanol (70 kPa). The activity coefficients and boiling points of the solutions were correlated with the mole fraction by the Wohl, Wilson, UNIQUAC, NRTL and Wisniak-Tamir equations.

Original languageEnglish
Pages (from-to)723-737
Number of pages15
JournalPhysics and Chemistry of Liquids
Volume39
Issue number5
DOIs
StatePublished - 1 Jan 2001

Keywords

  • Fuel oxygenating additive
  • Unleaded gasoline
  • Vapor-liquid equilibrium

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