Corrosion inhibition of copper in acid medium using a new organic sulphide compound

In this study the inhibition effect of Benzyl phenyl sulphide on copper corrosion in 3M HNO3 solution was studied. Using Electrochemical techniques such as potentio dynamic polarization, Electrochemical impedance spectroscopy (EIS) ,weight loss (WL), AFM analysis and hydrogen permeation studies to asses the effectiveness of the inhibitor to be used in pickling baths. Results showed that BPhs has good inhibition efficiency on the corrosion of copper in 3M HNO3 solution. The adsorption of organic compounds on the copper metal surface from the acid follows Temkin’s adsorption isotherm and also AFM image analysis was performed to obtain the average roughness from 2D and 3D morphologies

Author(s): A. J. Adbul Nassera, V. Rethina Girib, S. Karthikeyanc, K. N. Srinivasand and R. Karthikeyana

Abstract | PDF

Share This Article