Salt effects on the isobaric vapor-liquid equilibrium for four binary systems

An ebulliometer was used to measure the vapor-liquid equilibrium at 101.3 k Pa for four binary systems: (1) the acetone-water-CaCl2 system; (2) the 2-p ropanol-water-potassium acetate system and the 2-propanol-water-KBr system at different salt concentrations; (3) the ethyl acetate-ethanol system satu rated with CaCl2; and (4) the acetone-carbon tetrachloride system saturated with CaCl2. The experimental results agree with the common behavior of sal t effects on the phase equilibrium. An anomalous crossover between "salting out" and "salting in" effects on acetone had been observed for the acetone -carbon tetrachloride system saturated with CaCl2.