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Influence of the TSC (Trisodium Citrate) on the corrosion inhibition of mild steel in MGD-Zn2+

J.Jeyasundari, Y.Brightson Arul Jacob, J.Arockia Selvi

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 Zn2+ was studied. MGD alone has some inhibition efficiency of 76%. Increasing the concentration of MGD and Zn2+, the efficiency has increases. The influence of the TSC (Trisodiumcitrate) on the corrosion inhibition ofMGD+Zn2+ systemwas studied and the IE is 100%. Present study was aimed to investigate the inhibition efficiency ofMGD-Zn2+-TSC in controlling the corrosion of carbon steel immersed in aqueous solution containing 60 ppmCl-. Potentiodymanic polarization study and FTIR shows that protective film formed on the metal surface.