Inhibition and Adsorption Using Thiazole-2-Carboxylic Acid as an Anti-Corrosive for Copper in HCl Media

Abstract

This research studied inhibition and adsorption using thiosol-2-carboxylic acid as an anti-corrosive for copper in an acidic environment. The aim of the study was to evaluate the inhibition efficiency of chemical inhibitors through two methods of weight loss, anode and cathode polarization, when concentrations of the inhibitor ranged from 100 to 250 ppm and at temperatures ranging from 40–60°C. The results showed that greater concentration of the inhibitor resulted in less corrosion and increased inhibition efficiency. This indicates the effectiveness of the inhibitor. By forming a layer on the copper surface and through the occurrence of adsorption due to the presence of nitrogen, sulfur and hydroxyl groups, the inhibitor transfers electrons from these groups to the surface of the metal, thus creating a protective layer that protects it from external influences.