Foam: A Definition
An emulsionlike two-phase system where the dispersed
phase is gas or air (in a liquid phase). A mass of gas cells separated
by thin films of liquid and formed by the juxtaposition of bubbles, giving
a dispersion in which a large proportion of gas by volume is dispersed
in a liquid.
Surfactants can act to create (enhance
foamability) or stabilize foams.
For books on foams, surfactants and their applications, click here.
For more information on surfactants, see the Surfactants
Virtual Library.