Fig. 5: κCCN for the ternary system containing 2-methylglutaric acid (2MGA), ammonium sulfate (AS), and sucrose.
a Experimental contour plot of κ-values extrapolated from experimental κ-values. The vertices of the triangles represent 100% pure compounds (weight percent compositions): bottom left vertex = 100% AS, bottom right vertex = 100% 2MGA, and top vertex = 100% sucrose. The color gradient indicates the range of κ-hygroscopicity values for the ternary system. The region for the assumed occurrence of LLPS is outlined in the dotted green lines. b The ternary system’s κ-experimental versus κ-predicted values obtained from the ZSR rule (light blue triangles), the ZSR/O:C hygroscopicity model (green squares), and the ZSR/O:C-LLPS hygroscopicity model (brown circles). The black dotted line is the referenced line of 1:1 ratio; the gray region shows a 95% prediction interval across the 1:1 line. Reprinted with permission from Malek et al. 56.
