Abstract
OUR work on hydrogen ion mobility1–4 led us to compare values of diffusion coefficients measured by polarography and by porous diaphragm cells. When D/D° (D = diffusion coefficient of an ion in a supporting electrolyte solution, D° = diffusion coefficient at infinite dilution, calculated from the Nernst equation) was plotted against concentration of supporting electrolyte, the curves for metallic cations4 approached a D/D° value of 1 at infinite dilution. Our curves for the hydrogen ion in alkali halides also approached 1 but those obtained by Woolf5 using porous diaphragm cells approached a lower value.
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References
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ROBERTS, N., NORTHEY, H. Proton Mobility in Water in Glass Pores of 15 µm Diameter. Nature Physical Science 237, 144 (1972). https://doi.org/10.1038/physci237144a0
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DOI: https://doi.org/10.1038/physci237144a0
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