摘要：ABSTRACT: The natural plant product used as a medicine namely marigold were tested as corrosion inhibitor of Zn in 0.5M of HCl. The Cyclic-Voltameter, potentiometry technique data suggested that the inhibition efficiency increases with the concentration of extract. The inhibition efficiency of inhibitor interpreted as adsorption on metal surface. Keywords: Cyclic-Voltammeter; alloy; Potentiometry.
