The salting coefficient of salt in polar system (methyl acetate-methanol) is obtained using scaled particle theory. The scaled particle theory is a predictive method for evaluation of the salt effect on VLE of methyl acetate-methanol at 1 atm. It requires only molecular parameters for calculating the salt effect. The salting coefficient of polar molecule is predicted for different inorganic salts. The influence of cation and anion on the salting out phenomenon of methyl acetate-methanol system is studied. Salting coefficient is dependent 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. This is an abstract of a paper presented at the 2012 AIChE Spring Meeting and 8th Global Congress on Process Safety (Houston, TX 4/1-5/2012).