Behaviour of surface-active substances at the dropping mercury electrode

1952 ◽  
Vol 36 (6) ◽  
Author(s):  
K. S. G. Doss ◽  
S. L. Gupta
Keyword(s):  
Mercury Electrode ◽  
Dropping Mercury Electrode ◽  
Surface Active ◽  
Active Substances

Tensammetry: A Method of Investigating Surface Phenomena by A.C. Current Measurements

1952 ◽  
Vol 5 (3) ◽  
pp. 500 ◽  
Author(s):  
B Breyer ◽  
S Hacobian
Keyword(s):  
Theoretical Basis ◽  
Mercury Electrode ◽  
Surface Phenomena ◽  
Current Voltage ◽  
Dropping Mercury Electrode ◽  
Adsorption Processes ◽  
New Type ◽  
Surface Active ◽  
Fundamental Equations ◽  
Active Substances

A new type of investigation into surface phenomena, "tensammetry", has been developed by superimposing a small sinusoidal A.C. voltage upon the direct potential applied to a dropping mercury electrode in the presence of surface active substances and measuring the resultant A.C. currents. Wave shaped current-voltage curves are thus obtained which have their origin in adsorption processes occurring at the electrode. These waves are attributed to the movement of surface active molecules in the region of "active space" near the electrode without actual electron transfer across the electrode boundary; that is, the electrode remains polarized with respect to U.C., but is depolarized with respect to A.C. The general properties of tensammetric waves of a number of organic compounds together with their effects on one another and on D.C. and A.C. polarographic waves have been investigated. The theoretical basis and the fundamental equations governing the tensammetric, process are derived and discussed.

scholarly journals Analysis of Cationic Surface Active Agents Using DME and Its Relevance to Their Adsorption

1987 ◽  
Vol 4 (1-2) ◽  
pp. 53-57
Author(s):  
J. Matysik ◽  
H. Kroszka ◽  
A. Persona
Keyword(s):  
Mercury Electrode ◽  
Analytical Determination ◽  
Surface Active Agents ◽  
Dropping Mercury Electrode ◽  
Surface Active

The paper describes an application of dropping mercury electrode (DME) for analytical determination of certain cationic surface active agents and their mixtures and presents obtained thermodynamical data of adsorption of investigated substances.

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