Abstract
The distribution coefficient of β-carotene between water and a mixed organic solvent was measured at T = 298.15 K. Binary solvent systems formed by 2-propanone with either cyclohexane or methylcyclohexane were used as the mixed solvent. The liquid−liquid equilibria, along with the tie lines, were determined for two ternary aqueous systems, viz., cyclohexane + water + 2-propanone and methylcyclohexane + water + 2-propanone. The systems exhibit a parabolic type miscibility gap. The coexistence curves were measured by the titration method, and results were smoothed by means of either three- or four-parameter equations.
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