| Popis: |
The extent of sorption by zirconia from dilute aqueous solutions of sodium chloride and hydrochloric and nitric acid, and a number of mixtures of these electrolytes, was studied by conductometric and potentiometric measurement of concentration loss from solution. Sorption of sodium ion was not detected from neutral or acid solutions. Sorption from nitric acid is rather less in extent than from hydrochloric acid at corresponding concentrations. From solutions containing both these acids, anion sorption depends on both pH and anion fraction. Electrokinetic properties of zirconia in these solutions were studied by microelectrophoresis. Zirconia is negatively charged in water, charge reversal occurring in nitric acid and hydrochloric acid solutions at concentrations approximates 10/sup -4/ and approximates 10/sup -3/N, respectively. (auth) |
