Investigation of Adsorption of New Schiff Base on Steel Surface in Sulfuric Acid Medium

Document Type : Original research

Authors

1 Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran

2 Department of Chemical Engineering, Hamedan University of Technology, Hamedan, Iran

Abstract

New Schiff base (HBDP) has been investigated as inhibitor for corrosion of steel in the acidic environment. For this purpose; potentiodynamic polarization, AC impedance measurements, were utilized. Polarization curves reveal that the compounds are mixed type inhibitor and inhibition efficiency increases with increasing concentration of compounds. Further, the (HBDP), displayed the best inhibiting characteristics for this system, with a maximum IE of approximately 59% having added only 0.8mg/L. The compound obeyed the Langmuir isotherm. At the end, the surface of the pieces was examined by optical microscopy.

Keywords


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