eng Science and Education Publishing American Journal of Materials Science and Engineering 2333-4673 2020-07-16 8 1 17 21 10.12691/ajmse-8-1-3 AJMSE2020813 article Khaly Ciss¨¦ 1 Diadioly Gassama gassamadiadiol@gmail.com 2 Abdou Aziz Diagne 2 Mamadou Badji 2 MPCI, UFR SATIC Alioune Diop University, Bambey, Senegal 3MPCI, UFR SATIC Alioune Diop University, Bambey, Senegal The behavior of S235 metal, a general purpose metal construction material in Senegal, has been studied in perchloric acid solution in the presence of gum arabic from Senegal as a corrosion inhibitor. The protective power of this compound has been evaluated by electrochemical methods (stationary polarization curves and electrochemical impedance spectroscopy), at different inhibitor contents. We have considered testing gum arabic as an aqueous corrosion inhibitor. Electrochemical tests show that the values of the corrosion parameters vary with the content of gum arabic. An optimal inhibitory efficacy of approximately 88% is obtained for this substance, thus demonstrating the inhibitory nature. http://pubs.sciepub.com/ajmse/8/1/3/ajmse-8-1-3.pdf corrosion gum arabic S235 steel perchloric acid