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RESEARCH ARTICLE
Contents Vol 69(11)

A New Technique for Studying Vapour–liquid Equilibria of Multi-Component Systems

Federico M. Ferrero Vallana A , Lynette A. M. Holland B and Kenneth R. Seddon A C
+ Author Affiliations
- Author Affiliations

A The QUILL Centre, The Queen’s University of Belfast, Stranmillis Road, Belfast BT9 5AG, UK.

B Procter & Gamble London Innovation Centre, Whitehall Lane, Egham, Surrey TW20 9NW, UK.

C Corresponding author. Email: quill@qub.ac.uk

Australian Journal of Chemistry 69(11) 1240-1246 https://doi.org/10.1071/CH16151
Submitted: 11 March 2016  Accepted: 21 April 2016   Published: 1 July 2016

Abstract

A Fourier transform infrared gas-phase method is described herein and capable of deriving the vapour pressure of each pure component of a poorly volatile mixture and determining the relative vapour phase composition for each system. The performance of the present method has been validated using two standards (naphthalene and ferrocene), and a Raoult’s plot surface of a ternary system is reported as proof-of-principle. This technique is ideal for studying solutions comprising two, three, or more organic compounds dissolved in ionic liquids as they have no measurable vapour pressures.


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