Abstract
A semi-automated apparatus to measure vapor pressure differences between a reference solvent and dilute solutions as a function of concentration at constant temperature is described. Application to the benzene-cyclohexane and benzene-cyclohexane-water systems at high cyclohexane concentrations and low water concentrations is reported. At 50°C in the two component mixture we find lnγB=ln(f B/X B f 0B )=0.408−0.89XB for 10−3<X B <3×10−2 and in the three component system, lnγW=6.79±0.04 for 10−6<X W <2×10−5 and 10−3<X B <3×10−2.
Similar content being viewed by others
References
H. Hala, V. Pick, V. Fried, and O. Vilim,Vapor-Liquid Equilibrium, 2nd edn. (Pergaman, Oxford, 1967).
H. C. Van Ness and M. Abbott,Int. Data Ser. Selec. Data Mixtures Ser. A., (1977), pp. 7–9;Classical Thermodynamics of Non-Electrolyte Solutions, (McGraw-Hill, New York, 1982).
A. J. B. Cruickshank, B. W. Gainey, and C. L. Young,Trans. Faraday Soc. 64, 337 (1968).
E. F. Meyer and E. F. Meyer, III,J. Chromatog. 234, 448 (1982); E. F. Meyer and F. A. Baiocchi,J. Chem. Thermodyn. 9, 1051 (1977);10, 823 (1978).
J. A. Barker,Aust. J. Chem. 6, 207 (1953).
G. Jakli, P. Tzias, and W. A. Van Hook,J. Chem. Phys. 68, 3177 (1978).
J. Pupezin, G. Jancso, and W. A. Van Hook,Isotopenpraxis 9, 319 (1970);J. Phys. Chem. 76, 743 (1972).
G. Jancso and W. A. Van Hook,Chem. Rev. 74, 689 (1974).
R. S. Hutchings and W. A. Van Hook,J. Chem. Thermodyn., in press.
G. Jancso and W. A. Van Hook,Physica 91A, 619 (1978); G. Jakli and W. A. Van HookGeochemical J. 15, 47 (1981); M. K. Dutta-Choudhury and W. A. Van Hook,J. Phys. Chem. 86, 1711 (1982);86, 4068 (1982).
E. E. Tucker, E. H. Lane, and S. D. Christian,J. Phys. Chem. 83, 426 (1979);J. Solution Chem. 10, 1 (1981).
G. Jakli and W. A. Van Hook,J. Chem. Eng. Data 26, 243 (1981).
G. Scatchard, S. Wood, and J. Mochel,J. Am. Chem. Soc. 61, 3206 (1939); E. R. Brewster and M. L. McGlashan,J. Chem. Soc. Faraday Trans. I 69, 2046 (1973); J. Stecki and A. W. Jackowski,J. Chem. Thermodyn. 8, 1095 (1976); K. Elliot and C. J. Wormald,J. Chem. Thermodyn. 8, 881 (1976); S. Murakami and G. C. Benson,J. Chem. Thermodyn. 1, 559 (1969); R. H. Stokes, K. N. Marsh, and R. P. Tomlins,J. Chem. Thermodyn. 1, 211 (1969); K. Y. Hus and H. L. Clever,J. Chem. Thermodyn. 7, 435 (1975).
C. G. Boissonnas,Helv. Chim. Acta 22, 541 (1939).
See for example J. Prausnitz, T. Anderson, E. Grens, C. Eckert, R. Hsieh, and J. O'Connell,Computer Calculations for Multicomponent Vapor-Liquid and Liquid-Liquid Equilibria, (Prentice-Hall, Englewood Cliffs, NJ, 1980).
G. N. Lewis, M. Randall, K. S. Pitzer, and L. Brewer,Thermodyn., (McGraw-Hill, New York, 1961), Chap. 19.
R. S. Hutchings, Thesis, University of Tennessee, Knoxville (1983).
S. Goldman,Can. J. Chem. 52, 1668 (1974).
Author information
Authors and Affiliations
Additional information
Taken in part from a PhD. thesis, University of Tennessee, 1983.
Rights and permissions
About this article
Cite this article
Hutchings, R.S., Van Hook, W.A. A new continuous dilution vapor liquid equilibrium apparatus: The activity coefficients of benzene and water in cyclohexane at 50°C. J Solution Chem 14, 13–26 (1985). https://doi.org/10.1007/BF00646726
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00646726