Vapor-liquid equilibria at 453.25 K and excess enthalpies at 363.15 K and 413.15 K for mixtures of benzene, toluene, phenol, benzaldehyde, and benzylalcohol with benzyl benzoate

Isothermal P-x data at 453.25 K and excess enthalpies at 363.15 K and 413.1 5 K are presented for binary systems of benzyl benzoate together with benze ne, toluene, phenol, benzaldehyde, and benzyl alcohol. As pointed out previ ously (Nienhaus, B.; Limbeck, U.; Bolts, R.; de Haan, A. B.; Niemann, S. H. ; Gmehling, J. J. Chem. Eng. Data 1998, 43, 941-948), information about the real behavior of systems including these components is very important, esp ecially for the production of phenol by toluene oxidation. In addition, the se data will be used for the introduction of a new aromatic ester group (AC -COO-) into modified UNIFAC (Dortmund), which is part of the revision, exte nsion, and further development of this group contribution method. The vapor -liquid equilibrium (VLE) data of four systems were measured using a static apparatus. The corresponding experimental excess enthalpy (HE) data were d etermined with the help of an isothermal flow calorimeter. For the simultan eous description of VLE and HE data the NRTL model was used.