Liquid-vapour equilibrium of {xBF3 + (1 - x)n-butane} at 195.49 K

Lino M. B. Dias, Rui P. Bonifácio, Eduardo J. M. Filipe, Jorge C. G. Calado*, Clare McCabe, George Jackson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


The saturation vapour pressure of {x BF3 + (1-x)n-C4H10} has been measured at 195.49K. The system shows large positive deviations from Raoult's law and liquid-liquid immiscibility over a wide composition range whose limits have been estimated as 0.39±0.03<x>0.9785. The excess molar Gibbs energies (GmE) have been calculated as a function of composition from the vapour pressure data. For the hypothetical equimolar mixture GmE (x=0.5) = (703.9±29) Jmol-1. The results were interpreted using the statistical associating fluid theory for potentials of variable range (SAFT-VR), as well as compared with those of related systems, such as (BF3 + n-pentane) and (BF3 + xenon).

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalFluid Phase Equilibria
Issue number1
Publication statusPublished - 15 Mar 2003


  • Alkanes
  • Boron trifluoride
  • Phase equilibria
  • SAFT
  • Xenon

ASJC Scopus subject areas

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


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