Adsorption-Desorption Phenomena of Sodium Dodecyl Sulfate and Sodium Dodecylbenzenesulfonate at a Hanging Mercury Drop Electrode

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  • 硫酸ドデシルナトリウムとドデシルベンゼンスルホン酸ナトリウムの水銀電極への吸着-脱着挙動

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Description

Adsorption-desorption phenomena of sodium dodecyl sulfate and sodium dodecylbenzenesulfonate at a mercury electrode were studied by a flow injection method with measuring differential capacity-time curves. Adsorption of sodium dodecyl sulfate at -0.2 V is irreversible, while that at the potential more negative than -0.4 V is reversible. Adsorption of sodium dodecylbenzenesulfonate is irreversible at the potential more positive than -0.8 V. It is reversible at the potential more negative than -1.0 V. From these results, adsorption models for the two surfactants were proposed.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1998 (7), 511-513, 1998-07-10

    The Chemical Society of Japan

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