What is the partition coefficient of acetic acid between water & butanol

Distribution coefficients of acetic acid between aqueous phase and solvents (water-C 6 - C 10 alcohols, butyl acetate, ether and benzene) were studied. Synergetic effect was obtained for alcohol and ester systems. A slightly positive deviation was obtained for benzene-ester mixtures. The best distribution coefficient was obtained for hexanol-butyl acetate systems. The coefficients of Redlisch-Kister equation were obtained for the deviations.