Research Project
Grant-in-Aid for Young Scientists (B)
We studied the origin of anomalous long-range repulsion between silica-beads in supercritical ethanol. We verified the screening of the repulsion by addition of electrolyte in ethanol and concluded that this repulsion is electrostatic repulsion. It was indicated that the repulsion was induced by density fluctuations of ethanol. Same results were obtained in acetone. These are strongly indicated that the phenomenon has solvent universality and the fluctuations cause the repulsion.
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