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Corrosion inhibition of iron in hydrochloric acid using pyrazole
Journal article   Open access  Peer reviewed

Corrosion inhibition of iron in hydrochloric acid using pyrazole

S.S. Abdel-Rehim, K.F. Khaled and N.A. Al-Mobarak
Arabian journal of chemistry, Vol.4(3), pp.333-337
07/2011
DOI: https://doi.org/10.1016/j.arabjc.2010.06.056

Abstract

Corrosion Hydrochloric acid Inhibition Iron Pyrazole
The corrosion and corrosion inhibition of iron in HCl solutions in the absence and presence of pyrazole (PA) were investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Changes in impedance parameters (Rct and Cdl) were indicative of the adsorption of PA on the iron surface. The adsorption of PA is found to obey Langmuir adsorption isotherm. The study suggests that this compound is an anodic inhibitor.
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https://doi.org/10.1016/j.arabjc.2010.06.056View
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