Solubility of Anthracene in Multicomponent Solvent Mixtures Containing Propanol, Butanol, and Alkanes

Experimental solubilities are reported for anthracene dissolved in ternary solvent mixtures 1-propanol + 2-propanol + cyclohexane and 1-butanol + 2-butanol + cyclohexane, for anthracene dissolved in the heptanary solvent mixture 1-propanol + 2-propanol + 1-butanol + 2-butanol + cyclohexane + heptane + 2,2,4-trimethylpentane, and for anthracene dissolved in binary solvent heptane + 2,2,4-trimethylpentane at 298.15 K. For the two ternary solvent systems anthracene mole fraction solubilities are reported at 19 different ternary compositions spanning the entire mole fraction range. In the case of heptanary solvent system, solubility data was measured at eight solvent compositions. Results of these measurements are used to test the predictive ability of the combined nearly ideal multiple solvent (NIMS)/Redlich−Kister and combined NIMS/BAB equations. Computations showed that both solution models provided reasonably accurate predictions for how the mole fraction solubility varied with solvent compositions. Deviations between predicted and experimental values were on the order of ±0.95% for the better of the two predictive equations.