The adsorption of Cl− ions at the mercury/aqueous HCl solution interface at 0°C
✍ Scribed by Stefan Minc; Maria Jurkiewicz-Herbich
- Publisher
- Elsevier Science
- Year
- 1972
- Weight
- 123 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0022-0728
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✦ Synopsis
Previously I we studied the effect of temperature on the adsorption of C1-ions on mercury from aqueous HC1 solution in the 25°-60°C region. The analysis of the results suggested that the specific adsorption of C1-ions decreases with increasing temperature; in particular this was indicated by a linear decrease in q~l-values with temperature at constant qM. The influence of temperature on the molecular properties of the inner layer proved to be insignificant, except for a small increase in both capacitance components q,K i and qK i with increasing temperature; the thickness ratio values (XE--X1)/X 2 were practically independent of temperature at constant charge of mercury surface.
In the present investigation of the specific adsorption properties for C1-ions at t = 0 ° C, deviations from the previously observed trends have been noted ; especially that the adsorbed charge q~-is slightly lower than that at t = 25 ° C for small positive qM values (Fig. ). These are accompanied by a shift of the potential of zero charge 20-
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