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Observations of the diffusion coefficient of the hydroxyl ion in lithium hydroxide solutions

✍ Scribed by E.L. Littauer; K.C. Tsai

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
422 KB
Volume
24
Category
Article
ISSN
0013-4686

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✦ Synopsis

The diffusion coefficient of OH -in LiOH solution was found to be 6.8 x lo-s cm2/s at 298 K at infinite dilution. The experimental technique utilized a rde at which the limiting current for 0, evolution was measured. Because the O2 gas bubbles impact on convection at the electrode, the Levich equation was modified to acoount for this effect. Mean diffusion coefficients of LiOH were determined. At infinite dilution, it is 2.19 x lo-' cm*/s at 298 K. Values are given for the concentration range from 0.5 to 5 M LiOH.

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