TY - JOUR ID - 134799 TI - Reduction of copper corrosion in 5 M HCl solution by expired nontoxic Ofloxacin drug JO - Asian Journal of Green Chemistry JA - AJGC LA - en SN - 2588-5839 AU - Raghavendr, Narasimha AD - Department of Chemistry, K.L.E. society's P. C. Jabin Science College (Autonomous) Vidyanagar, Hubballi-580031, India Y1 - 2021 PY - 2021 VL - 5 IS - 3 SP - 287 EP - 293 KW - Expired Ofloxacin drug KW - 5 M HCl KW - Tafel Plot KW - AC impedance spectroscopy KW - Scanning electron microscopy DO - 10.22034/ajgc.2019.165292.1126 N2 - Several corrosion inhibitors have been used in industry to eliminate the corrosive influence of harsh hydrochloric acid solutions on the mechanical behavior of copper structures. Recently, expired drug products as corrosion inhibitor have been developed to replace the organic compounds (synthesized) which are expensive and toxic molecules. In this work, the expired nontoxic Ofloxacin drug is used to study the its effectiveness as a corrosion inhibitor for copper metal in 5 M HCl solution with the aid of weight loss, potentiodynamic polarization, AC impedance spectroscopy and scanning electron microscopy (SEM) studies. The weight loss results demonstrated that, 4 mg/L of expired Ofloxacin drug was the optimum concentration for inhibition of copper corrosion in acidic system. Tafel plot results revealed the mixed corrosion inhibition property of expired Ofloxacin drug. AC impedance spectroscopy and scanning electron microscope (SEM) results well supported the weight loss and potentiodynamic polarization results. UR - https://www.ajgreenchem.com/article_134799.html L1 - https://www.ajgreenchem.com/article_134799_685234e2730b80b91e8da0497d688f57.pdf ER -