Abstract
The present work is part of an investigation extending the determination of activity coefficients γ ∞ 13at infinite dilution by medium-pressure g.l.c. to include volatile and polar solvents. The activity coefficient at infinite dilution for a series of n-alkane solutes (C 5to C 7), cycloalkanes (C 5and C 6), benzene, tetrahydropyran, and tetrahydrofuran have been measured in a polar solvent: tetrahydrothiophene-1,1-dioxide (sulfolane) at the temperature 303.15 K. The effects of the size of the injection volumes of the solute and the solvent loading on the column were investigated in order to ensure infinite dilution and non-adsorption conditions, respectively. The mixed second virial coefficients used in this work were calculated by assuming the principle of corresponding states, the Hudson and McCoubrey combining rules, and the McGlashan and Potter equation of state. A modified NRTL equation was used to determine γ ∞ 13for benzene in sulfolane from finite-mole-fraction results. The γ ∞ 13results obtained here highlight the polar nature of sulfolane.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
