MEASUREMENTS OF MAGNETIC EFFECTS ON ELECTROLYTE-SOLUTIONS BY ATOMIC-FORCE MICROSCOPE

The interaction force between a mica plate and a silica particle in a KCl solution was measured using an atomic force microscope and the dif ference between the interaction at molecular level in magnetized solut ions and that in non-magnetized solutions was examined to clarify the mechanism of the magnetic exposure effects on electrolyte solutions. T he data were compared with the results of previous experiments on magn etic effects on colloidal and fluorescent solutions. It was found that (I) the magnetic exposure reduces the potential of the solid surface, (2) the magnetic effect decays with the concentration of alcohol in t he solution and the solution temperature, (3) the magnetic effects rem ain for a sufficiently long period even after the magnetic exposure is completed, and (4) the magnetic effects on the apparent surface poten tial in this study are consistent with those on the zeta potential rep orted previously.