2.5. Determination of partition coefficients of oleic acid
Determination of the partition coefficients of oleic acid was carried
out by titration of steady-state phases with 0.01 mol L1 KOH
solution in water in the presence of phenolphthalein. The titration
of hexane and oil phases was carried out after preliminary addition
of 96% ethanol (2 volumes of 96% ethanol were added to 1 volume
of the titratable phase).