In this work

tne authors modified the structure of presaturators and determined 88 activity coefficients at infinite dilution of 52 binary systems at various temperatures by gas chromatography with double saturators. Data for 14 among these 88 were found to conform pretty well with those disclosed in literature. For systems containing ethylbenzene

the results indicated that good linear relation between In γ1∞ and the reciprocal of temperature was obtained and the heats of solution at infinite dilution of these systems were evaluated.