Inorganic and Analytical

Proceedings of the Indian Academy of Sciences - Section A, Chemical Sciences

, Volume 87, Issue 12, pp 447-454

First online:

Electrochemical reduction of Cu(II)-CyDTA complex at dropping mercury electrode. An impedance approach

  • G A BhatAffiliated withDepartment of Organic Chemistry, Indian Institute of Science

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The electrochemical reduction of Cu(II)-CyDTA (CyDTA — trans 1,2-cyclohexanediamine N, N, N′, N′ tetraacetic acid) by impedance method reveals the unusual behaviour of complex plane polarograms owing to potential dependence of double layer capacitance. The impedance plane plots by frequency variation method indicates the quasi-reversible nature of the system. From these plots the chargetransfer resistance at various potentials was evaluated. The standard rate constant was evaluated which complements the prediction of impedance plots for the quasireversible behaviour of the system.


Electrochemical reduction Cu-CyDTA system impedance method complex plane polarography