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The correlations between the experimental caffeine solubility in binary water-organic mixtures at 25 °C and the solute–solute (AA) affinities, solute–solvent (AB = AB1 + AB2) affinities and total affinities including solvent–solvent interactions (AA + AB + BB), where A stands for caffeine, B1 denotes the organic solvent, B2 denotes water and BB = BB1 + BB2 + BB12.
