ABSTRACT
Emulsions are by definition dispersions of a liquid phase in another, which exhibit a certain stability, in most cases thanks to the presence of an adsorbed surfactant at interface. Hence, at least two immiscible liquid phases should be present to make an emulsion. As a consequence, the
phase behavior of the system made by the surfactant (S) and the two immiscible liquids, referred to as oil (O) and water (W) in a very general way, is of paramount importance [1].
