Department of Chemistry, Faculty of Basic Science, Mazandaran University, P.O. Box 453, Babolsar, I.R. IRAN
The aqueous electrochemistry of a number of anthraquinone derivatives was studied by using cyclic voltammetry at the surface of carbon paste electrode (CPE). From measurements of the half-wave potential as a function of pH, the potential - pH diagrams were constructed for each compound. The values of formal potentials and the pK'a of some different redox and acid-base couples involved in each compound at various pHs were obtained.