COMPARISON OF MODELS FOR DESCRIBING MULTIPLE PEAKS IN SOLUBILITY PROFILES

A model derived from the combined nearly ideal binary solvent/Redlich- Kister equation (CNIBS/R-K) for reproducing the experimental solubilit y curve in mixed solvent systems showing two solubility maxima is pres ented. The model's ability to correlate experimental solubility data i s compared with those of two previously published empirical models. Co mputations indicate that the descriptive capability of the CNIBS/R-K m odel is significantly better than that of both empirical models. The m athematical representation of solute solubility at different temperatu res using the CNIBS/R-K model is also considered. (C) 1998 Elsevier Sc ience B.V. All rights reserved.