The determination of activity coefficients of alkenes, alkynes, and cycloalkanes at infinite dilution with the polar solvent tetrahydrothiophene-1,1-dioxide (sulpholane) using a g.l.c. technique atT=303.15 K andT=313.15 K

✍ Scribed by T.M. Letcher; P.G. Whitehead

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 306 KB
• Volume: 28
• Category: Article
• ISSN: 0021-9614
• DOI: 10.1006/jcht.1996.0075

✦ Synopsis

This work is part of an investigation to determine activity coefficients at infinite dilution g a 13 of hydrocarbons in the industrially important polar solvent tetrahydrothiophene-1,1-dioxide (sulpholane), by medium pressure gas liquid chromatography (g.l.c.). In this work the activity coefficients at infinite dilution for a series of 1-alkenes (C6 to C8), 1-alkynes (C6 to C8), and cycloalkanes (C7 and C8) have been measured in the polar solvent sulpholane at T=303.15 K and T=313.15 K. The activity coefficients of some of the solutes discussed in this work would be difficult to determine by any other method because of their low solubility in sulpholane. The mixed second virial coefficients used in this work were determined by assuming the principle of corresponding states, the Hudson and McCoubrey combining rules for Tc,12, the Lorentz rule for Vc,12, and the McGlashan-Potter equation.