At temperatures from (289 to 353) K, the ternary system (ethene + water + 2-propanol) is known to exhibit a region of liquid-liquid-vapor (L(1)L(2)V) equilibria at elevated pressures that is bordered by the lower ((L(1) = L(2))V) and upper (L(1)(L(2) = V)) critical end point lines. This particular demixing effect is commonly known as "salting out by a supercritical gas". In this work, the effect of adding different electrolytes on the pressure of both critical end points at (293 and 333) K is investigated.