| Background: Recently Sandeepa et al. reported the solubility of benzoic acid in six
monosolvents (i.e. tributyl phosphate, diacetone alcohol, methyl-n-propyl ketone, methyl
acetate, amyl acetate, and isooctane) and five binary systems (i.e. ethanol + hexane,
isopropyl alcohol + hexane and chloroform + hexane, acetone + hexane, and acetone +
water) along with some numerical analyses. The reported calculations have been
reanalyzed and some recommendations and further computations were proposed.
Methods: Further analyses were performed based on combined nearly ideal binary
solvent/Redlich-Kister, the modified Wilson model, general single model, Jouyban–Acree
model and Jouyban–Acree–van’t Hoff model.
Results: The mentioned numerical analyses were used to predict the solubility of benzoic
acid in the binary solvent mixtures at various temperatures and the predicted solubility data
were compared with their corresponding experimental values by calculating relative
deviations.
Conclusion: The investigated models provide good estimation of the solubility behavior
of benzoic acid in the binary solvent mixtures at various temperatures. |