The interfacial activity of 2-hydroxy-5-t-butylbenzophenone (E)-oxime
(HBBO), two model alpha-acyloin oximes: 9-hydroxy-8-hesadecanone oxime
(HHO) and 13-hydroxy-12-tetracosanone oxime (HTO), and a model modifi
er such as p-tertbutylphenol (BPh) is investigated at toluene/water in
terface, at 21 degrees C. Interfacial tension isotherms for individual
compounds as well as for binary mixed solutions are obtained. In part
icular, it is shown that in all mixed systems co-adsorption is observe
d. Composition of mixed adsorption monolayer is affected mainly by mut
ual efficiency of adsorption of surface active components and composit
ion of the bulk solution phase.