Anodic Corrosion of Copper in Presence of Organic Compounds

Elkashlan, Howaida M.; Ahmed, A. M.
July 2012
International Journal of Electrochemical Science;Jul2012, Vol. 7 Issue 7, p5779
Academic Journal
The electropolishing setting for the inhibiting the rate of anodic corrosion of copper plates in phosphoric acid were achieved using potentiodynamic studies including different factors such , plate height, conc of additives ,type of additives and temperature. The results reveal that benzoic acid derivatives have strongest inhibitive effect ranging from 11.4% to 42.8% depending on the type of additives and their concentrations. The adsorption obeys languimir, flory-Huggines and kinetic isotherm. The order of inhibition efficiency is Salicylic acid > anthranilic > m-Chlorobenzoic > m-hydroxy benzoic >Benzoic≈ P-hydroxybenzoic. Thermodynamic parameters were given


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