• Behaviour of surface-active substances at the dropping mercury electrode

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    • Keywords


      Cathodic Potential; Differential Capacity; Drop Mercury Electrode; Current Voltage Curve; Bromo Thymol Blue

    • Abstract


      It is found that the differential capacity of the dropping mercury electrode is affected mainly in two ways by added surface-active substances. At about the electrocapillary zero there is a strong lowering of the capacity due to adsorption of surface-active substances. At some higher cathodic potential there is enormous increase in differential capacity leading to a maximum and is followed by a sharp fall in the capacity; the latter is due to the desorption taking place more or less sharply at the higher cathodic potentials. The theory of the phenomenon has been formulated.

    • Author Affiliations


      K S G Doss1 S L Gupta1

      1. Indian Institute of Sugar Technology, Kanpur
    • Dates


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