Gh. Gu et al., Comparison between three-phase extraction system of TBP-kerosene/HClO4-H2Oand two-phase extraction system of TBP/HClO4-H2O, SOLVENT EXT, 18(5), 2000, pp. 841-851
Three-phase extraction system of TBP-kerosene/HClO4-H2O has been studied an
d compared with two-phase system of TBP/HClO4-H2O. The results indicate tha
t the composition of the middle phase and its change with the increasing aq
ueous acidity in the three-phase system are almost the same as that of the
organic phase in two-phase system. The extraction in high acidity can be ex
plained by the solubilization of acid and water in the aggregates formed by
amphiphilic extracted complexes.