On the gibbs adsorption equation for electrolyte solutions.
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概要
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A general method is developed to derive the Gibbs adsorption equation in the form applicable to aqueous solutions of electrolytes, either strong or weak, composed of multi-components. Assuming that the solution is ideal, the chemical potentials of solute electrolytes are represented by their concentrations, and the lowering of surface tension is calculated as a function of variations of these concentrations. Explicit expressions for surface excesses of various species are obtained on aqueous solutions of two strong electrolytes having a common cation, such as sodium dodecyl sulfate and NaCl, and on solutions containing a weak acid adjusted its ionization by addition of alkali, such as fatty acid or soap, in the presence of an added salt. The convention for drawing the Gibbs dividing plane is discussed when the Gibbs adsorption equation is represented in terms of all the species in solution.
- 公益社団法人 日本化学会の論文
著者
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Ikeda Shoichi
Department of Chemistry, Faculty of Science, Nagoya University
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Ikeda Shoichi
Department of Biology, Osaka University
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