Abstract
Abstract A salt dissolved in a mixture of volatile components may affect the activities of the components through the formation of associates or complexes. If this interaction is selective, the relative volatility of the volatile components may change drastically and thus facilitate the separation of close-boiling components or even of azeotropic mixtures. A new method for predicting the effect of salt addition has been developed which is based solely on vapour-liquid equilibrium data for the volatile components and solubility data for the binary salt-solvent systems. The procedure can correlate data for various salt and solvent compositions, including saturated solutions. The model may easily be extended to multisolvent-salt systems.
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