Gas-liquid chromatography was used to analyze equilibrium vapors over toluene dispersions of sodium and magnesium dinonylnaphthalene sulfonates and magnesium phenylstearate containing total concentrations of methanol ranging from 0.2% to 2.6% by weight. Resulting data were used to derive the extent of solubilization of methanol by these oil-soluble soaps. Within the region investigated, as many as 5 moles of methanol were solubilized per equivalent of soap. The degree of solubilization with respect to the concentration of available solubilizate was a function of the cation and its tendency to coordinate, as well as of the anion of the soap. The addition of water to a system containing 2.3% of methanol increased the proportion of methanol solubilized. Infrared data indicated that hydrogen bonding is an important influence in the solubilization process. Fluorescence depolarization data suggest a decrease in micelle size with increasing solubilization of methanol. Special precautions were required to minimize interferences and disturbances to the chromatographic observations arising from radio-frequency sources, unstable carrier-gas flow rates and pressures, and sampling valve contamination.