Patterns of solid-fluid phase equilibria: new possibilities?

Thermodynamic phase space patterns of solid-liquid-vapor (slg) behavior in binary systems are reviewed. The van der Waals equation of state is used in combination with a common mathematical artifice for the solid-phase fugaci ty function to map out the sig loci for a model binary homologous series of solvent + solute mixtures as a function of the solute characterization. Th e computational results suggest the possible existence of a richer thermody namic phase space topography than previously envisioned. (C) 1999 Elsevier Science B.V. All rights reserved.