A CORRELATION OF EXCESS THER^IODYNAMIC PROPERTIES FOR ALCOHOL- NONPOLAR SOLVENT SYSTEMS BY A CONTINUOUS LINEAR ASSOCIATION MODEL

The vapor-liquid equilibrium and heat of mixing data for binary mixtures of alcohols-nonpolar substances are analyzed by using a continuous linear association model. Newsets of values for association constant and enthalpy of hydrogen bond formation for aliphatic alcohols are presented which represent vapor-liquid equilibria better than the sets by Renon and Prausnitz. The physical interaction parameter, which has been treated so far as an adjustable parameter, is correlated satisfactorily with solubility parameter and branching parameter. The estimation of vapor-liquid equilibria for alcohol-hydrocarbon systems is possible by use of the correlation.