Salting-out Ability of Inorganic Salts in Solutions of Ethoxylated Nonylphenols

The pattern of changes in the salting-out ability of the salts of nontransition metals and ammonium is established with respect to aqueous solutions of ethoxylated nonylphenols. The anions in the salt play a key role in the process, while cations have almost no effect on the salting-out ability of the salts of singly charged anions. The salting-out effect of anions diminishes in the order , , Cl-, , Br-, and I-. Na+, K+, , and Ba2+ cations have no pronounced salting-in effect. The salting-in effect diminishes along with the charge of the cation in the order Al3+, Mg2+, and Li+. It is shown that the salting-out ability of salts diminishes as the degree of surfactant ethoxylation grows.