The Corrosion inhibition of an inhibitor namely Copper complex of 1-(8-hydroxy quinolin-2-yl-methyl)
thiourea (Cu-HTF) which controls the corrosion of mild steel immersed in an aqueous solution containing 60 ppm Cl- has
been investigated through electrochemical and mass loss method. The formulation consisting of 60 ppm of Cl- and 50 ppm
of Cu-HTF offers good inhibition efficiency of 78 %. Polarization study shows that this formulation acts as a cathodic
inhibitor.AC impedance spectra indicate that a protective film is formed on the mild steel surface. Fluorescence spectral
analysis was used to detect the presence of iron-inhibitor complex. The surface morphology has been analyzed by FTIR,
UV-Visible spectroscopy, Scanning Electron Microscope (SEM) and EDAX. Cu-HTF has the ability to prevent the
growth of certain microorganisms such as E. coli, Streptococcus, Pseudomonas and Enterobacter.