Haze point curve

When starting from the oil phase with dissolved surfactant and adding water. Solubilisation of the latter wiU take place and Solubilisation will increase with a reduction of temperature near the haze point. Between the Solubilisation and haze point curves, an isotropic region of W/O solubilised system exists. At any given temperature, any increase in water weight fraction above the Solubilisation limit will result in water separation (W/O solubilised-F water), while at any given surfactant concentration any decrease in temperature below the haze point will result in separation to water, oil, and surfactant. 

An example of surfactant behavior in conventional liquid solvents is shown in Fig. 3 for the nonionic C12EO5-water-heptane system [12]. The upper boundary of the narrow one-phase region, shown by open circles, is the solubilization boundary. The lower boundary, shown by filled circles, is the haze point curve. AOT systems have the same kind of phase behavior, but since AOT is anionic the relative positions of the solubilization and haze point... 

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