Collect. Czech. Chem. Commun. 1981, 46, 3003-3017

Effect of the course of the second derivative of Gibbs' energy in binary mixtures on the liquid-liquid equilibrium in ternary system

Josef P. Novák, Jaroslav Matouš, Josef Šobr and Jiří Pick

Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


The effect of the course of G11(x1) in binary systems is studied on the binodal curve shape, the extent of heterogeneous region and the inclination of tie-lines in the ternary system. The effect of individual quantities is shown both on model calculations and on the systems acetonitrile-benzene-n-heptane, water-benzene-ethanol and water-benzene-2-propanol. The UNIQUAC and the modified Wilson equations were employed for calculating.