| Popis: |
Oil-soluble surfactants were studied as solubilizing agents for a water-soluble food dye in perchlorethylene. In the absence of water, no solubilization of dye occurred, but above a minimum water/surfactant ratio the dye was solubilized to a measurable degree. At a fixed water/surfactant ratio each system shows a constant secondary dye solubilization ratio throughout the experimental concentration range studied, and this ratio depends upon both the type of surfactant and the water/surfactant ratio. Analysis of the data can lead to estimates of the critical micelle concentration for each system, and an example demonstrates that the critical micelle concentration decreases linearly with increasing water/surfactant ratio. |
