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ELISABETE JORGE PESSINE, SILVIA M. L. AGOSTINHO, and HBLIO C. CHAGAS. Can. J. Chem. 64, 523 (1986). Using a rotating Hg-film disc electrode, the diffusion coefficient of the zincate ion in a 1-4 M aqueous solution of NaOH was measured. Experiments covered a temperature range from 25 to 40°C. The experimental results are in agreement with the predictions of the Stokes-Einstein theory for diffusivity. The obtained Stokes radii decrease with increasing alkali concentration, but the ratio D q / T is reasonably constant within the whole range of temperature investigated.

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