Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
The inhibition efficiency (IE) of various concentrations of a TIPA(triisopropanolamine)-TSC(trisodium citrate)-Zn2+ system in controlling corrosion of mild steel immersed in aqueous solution containing 60 ppm Cl- was evaluated by a weight loss study. The formulation consisting of 100 ppm of TIPA and 50 ppm of Zn2+ showed 62% inhibition efficiency. When TSC (250 ppm) is added the inhibition efficiency increases to 100%. In the presence of TSC has excellent inhibition efficiency. Polarization studies reveal that TIPA-TSC-Zn2+ function as an anodic inhibitor. AC impedance spectra suggest that a protective film is formed on the metal surface. FTIR spectra reveal that the protective film consists of Fe2+ - TIPA, Fe2+ - TSC complex and Zn(OH)2