engleski

Reversible Charging of Ice-Water Interface. II. Estimation of Equilibrium Parametars

Equilibrium parameters characterising ice-water interface were obtained from electrokinetic and potentiometric data. The dependency of surface potential on pH was measured by the ice electrode. Electrokinetic _-potentials were measured by electrophoresis. In the interpretation 1-pK and 2-pK concepts of Surface Complexation Model, developed for metal oxides, were used. The equilibrium parameters (constants of surface reactions) were determined. The results were confirmed by numerical simulations. Both 1-pK and 2-pK models fit the experimental data well.

ice-water interface; ice electrode; surface potential; surface complexation

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