1988 Volume 14 Issue 1 Pages 8-13
To explain the effect of pressure on the liquid-liquid equilibria of two butanolwater systems, the solubility isotherms were thermodynamically analyzed by applying the Scatchard-Hamer equation to the activity coefficients of the components. The differences (Δv1 and Δv2) in the partial molar volumes of the components between the two liquid phases were evaluated in the range 0.1202.6 MPa at 302.95 and 322.75 K. The results for Δv1 and Δv2 agreed satisfactorily in sign and magnitude with those determined separately from the partial molar volumes. It is concluded that the Scatchard-Hamer equation is sufficiently applicable to the present systems and leads to reasonable results in analyzing the effect of pressure on the liquid-liquid equilibria.
