Abraham general solvation parameter model: predictive expressions for solute transfer into hexyl acetate from both water and from the gas phase

Abraham model correlations have been derived for predicting the solubility of chemically diverse set of crystalline organic compounds containing 25 carboxylic acids and 11 non-carboxylic acid solute molecules dissolved in the anhydrous (dry) hexyl acetate mono-solvent at 298.15 K. Solubilities were determined using an isothermal equilibration method, followed by a spectrophotometric method of chemical analysis based on the Beer-Lambert law. The Abraham model expressions reported in the current study were found to back-calculate the observed solubility data to within an overall standard deviation of 0.13 log units or less.