Abstract:Vapor-liquid equilibria for the systems, propionic acidisopropylbenzene and propionic acid-o-xylene, were obtained at 760 mmHg using a vapor recirculatory type of still. The activity coefficients were obtained by taking into consideration vapor phase association. Nothnagel's correlation based on chemical theory of vapor imperfections was used. The data satisfied the Herington criterion of thermodynamic consistency and were correlated by the Wilson equation.
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