  We develop a simulation method which allows us to calculate the critical
micelle concentrations for ionic surfactants in the presence of different
salts. The results are in good agreement with the experimental data. The
simulations are performed on a simple cubic lattice. The anionic interactions
with the alkyl chains are taken into account based on the previously developed
theory of the interfacial tensions of hydrophobic interfaces: the kosmotropic
anions do not interact with the hydrocarbon tails of ionic surfactants, while
chaotropic anions interact with the alkyl chains through a dispersion potential
proportional to the anionic polarizability.
