Belkacem Nessark , Farouk Tedjar , Zofia Kotkowska-Machnik , Noureddine Boumaza , Inhibition of the Electrode by Adsorption of the Perchlorate and the Opening Ring Products on the Surface in the Oxidation of Furans, Journal of Engineering and Applied Sciences, Volume 3,Issue 10, 2008, Pages 774-779, ISSN 1816-949x, jeasci.2008.774.779, (https://makhillpublications.co/view-article.php?doi=jeasci.2008.774.779) Abstract: The oxidation of furan, 2-methylfuran and 2,5-dimethylfuran on the rotating disk platinum electrode, in acetonitrile was investigated using cyclic voltammetry method. The results have shown, in presence of stirring, that the electrochemical behaviour of the 2-methylfuran is similar to furan, but it is different to 2,5-dimethylfuran. IR spectrum of the anodic deposit from the 2-methylfuran or furan show the presence of tetra-n-butylammonium perchlorate and the opening ring product in the film, which is strongly adsorbed on the electrode. The supporting electrolyte probably interferes in the formation of well-organized organic film. Also, others contaminants, such as oxygen and water which are inevitably present in solution affect the mechanism of oxidation and contribute to the structural film. Keywords: Furans;organic conducting polymer;opening ring product;Rotating disk electrode;cyclic voltamperometry