Surfactants AOT, DBS-Ca and alkylamines Primene 81-
R with shorter alkyl chain and Primene JM-T with longer
alkyl chain more hydrophobic decrease the interfacial tension
of gasoline/water interface. The effect depends both on
hydrophilic additives, type of surfactant and their concentrations
The shape of interfacial tension isotherms supports
the formation of reversed micelles in systems
containing AOT and DBS-Ca. Alkylamines do not
undergo micellar association.