Influence of the TSC (Trisodium Citrate) on the corrosion inhibition of mild steel in MGD-Zn~(2+)

摘要

The inhibition effect of MGD (Malachite green dye) on the corrosion of mild steel was studied by weight loss, Potentiodymanic polarization and FTIR spectra. The absence and presence of Zn~(2+) was studied. MGD alone has some inhibition efficiency of 76%. Increasing the concentration of MGD and Zn~(2+), the efficiency has increases. The influence of the TSC (Trisodium citrate) on the corrosion inhibition of MGD+Zn~(2+) system was studied and the IE is 100%. Present study was aimed to investigate the inhibition efficiency of MGD-Zn~(2+)-TSC in controlling the corrosion of carbon steel immersed in aqueous solution containing 60 ppm Cl~-. Potentiodymanic polarization study and FTIR shows that protective film formed on the metal surface.