SOLUBILITIES OF M-AMINOACETOPHENONES AND P-AMINOACETOPHENONES IN HYDROTROPE SOLUTIONS

The solubilities of m- and p-aminoacetophenones were determined in aqueous solutions of several hydrotropes by the weight disappearance method at different hydrotrope concentrations and temperatures. Commercially available aqueous hydrotrope solutions employed were 50% sodium butyl monoglycol sulfate, 40% sodium cumenesulfonate, 40% sodium xylenesulfonate, 40% sodium toluenesulfonate, and 40% ammonium xylenesulfonate, all the hydrotrope concentrations being expressed in mass/mass. At high concentrations, above the threshold hydrotrope concentration, hydrotropes enhance the solubilities of these components differently. The differences in solubilities with hydrotrope concentration and temperature can be exploited for the separation of these isomers.