WITHDRAWN: Inhibitory effect of ceftriaxone sodium on corrosion of copper in 1M nitric acid

Abstract

Acetification with the HNO3 is practiced often in industry for the finishing of the metal surfaces. Using the inhibitors throughout the operation of the pickling had originated quite recently. The Ceftriaxone sodium impact upon the copper corrosion inhibition in 1 M HNO 3 solutions has been researched with the use of the potentiodynamic polarization (PP) methods, in addition to the thermo-dynamic computations for the purpose of exploring Ceftriaxone sodium adsorption mechanism. The inhibition efficiency (IE%) has been discovered to result in increasing with the increase of the Ceftriaxone sodium dose. The maximal IE% of 90.884% has been resulted in presence of (100 mg/L). Ceftriaxone sodium inhibition action has been explained based on the adsorption on the copper surface. The process of the adsorption follows the kinetic-thermodynamic model and Langmuir isotherm. The tests of polarization have shown that this is a mixed type drug.