Patterns of solid-fluid phase equilibria II. Interplay with fluid phase criticality and stability

In an earlier paper, the van der Waals equation of state was used in combin ation with a common mathematical artifice for the solid-phase fugacity func tion to map out the sig loci for a model binary homologous series of solven t + solute mixtures as a function of the solute's parametric characterizati on. The computations suggested new possibilities for solid-fluid phase equi librium topography, heretofore not reported in the literature. To provide a better understanding of these computations, the authors have computed and mapped out the critical point loci, concurrently applying phase and system stability analysis. These new computations, which confirm the earlier solid -fluid computations, provide a detailed picture of how the solid-fluid topo graphy for this particular series of model mixtures evolves as solvent-solu te parametric differences increase. (C) 2000 Elsevier Science B.V. All righ ts reserved.