The inhibition of steel corrosion in acidic solutions by a new schiff base

• N. K BAKIRHAN ^[1] ; A ASAN ^[2] ; N COLAK ^[3] ; S SANLI ^[4]
  1. [1] Ankara University Faculty of Pharmacy Department of Analytical Chemistry
  2. [2] Hitit University Engineering Faculty Department of Chemical Engineering
  3. [3] Hitit University Science & Literature Faculty Department of Chemistry
  4. [4] Usak University Science & Arts Faculty Department of Chemistry

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• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 61, Nº. 3, 2016, págs. 3066-3070
• Idioma: inglés
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• Resumen

  • The inhibition effect of 2,2'- (((thiobis (4,1 phenylene)) bis(azanylylidene)) bis(methanylyidene)) bis(4-methoxyphenol) (BIS-IMIN) on the corrosion behavior of 304-stainless steel (SS) in 0.5 M HCl solution was studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. SEM, FT-IR, ¹H-NMR, 13C-NMR methods used for characterization of BIS-IMIN. Potentiodynamic polarization curves indicated that BIS-IMIN act as mixed type inhibitor. The adsorption of the inhibitor was more suited with the Langmuir adsorption isotherm and kinetic parameters Kads, ΔGads Ea , ΔHads, ΔSads were determined at room temperature. The results showed that BIS-IMIN performed well inhibiting effect for the corrosion of the SS.