Journal of Chemical Thermodynamics, Vol.33, No.1, 47-59, 2001
Thermodynamic properties of (n-alkoxyethanols plus organic solvents). XII. Total vapour pressure measurements for (n-hexane, n-heptane or cyclohexane+2-methoxyethanol) at different temperatures
Total pressure measurements are reported for (n-hexane + 2-methoxyethanol) at T = (313.15 and 323.15) K, (n-heptane + 2-methoxyethanol) at T = 323.15 K, and (cyclohexane + 2-methoxyethanol) at T = (303.15, 313.15, and 323.15) K. Results were obtained by using a Van Ness type apparatus and were fitted with the five-parameter modified Margules equation by Barker's method. Measurements are represented to within an average absolute deviation of approximately 0.02 kPa. Mixtures show positive deviation from Raoult's law and show azeotropic behaviour at the temperatures considered in this work. (C) 2001 Academic Press.