(53b) Prediction of Salt Effect on Vapor - Liquid Equilibrium of Methyl Acetate - Methanol System

The salting coefficient of salt in polar system (methyl acetate - methanol) is obtained by using scaled particle theory has been used. The scaled particle theory is a purely predictive method for evaluation of the salt effect on vapor - liquid equilibrium of methyl acetate - methanol at 1 atm. It requires only molecular parameters for calculating the salt effect. From scaled particle theory, the salt effect of polar molecule have examined in non-aqueous system. In the present study, the salting coefficient of polar molecule is predicted for various inorganic salts. The effect of cation and anion on the salting out phenomenon of methyl acetate - methanol system is reported. It is observed that salting coefficient is depending on the size and polarizability of the ions in non-aqueous solution. Therefore, the salting coefficient for a ternary system of methyl acetate - methanol - salt is well determined by scaled particle theory.

Keywords: methyl acetate, methanol, scaled particle theory, salting coefficient