Corrosion Protection Properties of 4�hydroxy�N'�[(1E, 2E)�3� phenylprop�2�en�1�ylidene] Benzohydrazide on Mild Steel in Hydrochloric Acid Medium1

Kumari, Preethi P and Shetty, Prakash and Rao, Suma (2015) Corrosion Protection Properties of 4�hydroxy�N'�[(1E, 2E)�3� phenylprop�2�en�1�ylidene] Benzohydrazide on Mild Steel in Hydrochloric Acid Medium1. Protection of Metals and Physical Chemistry of Surfaces, 51 (6). pp. 1034-1042. ISSN 2070-2051

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Abstract

The corrosion behaviour of mild steel immersed in 0.5 M HCl in the absence and presence of 4� hydroxy�N'�[(1E, 2E)�3�phenylprop�2�en�1�ylidene] benzohydrazide (HPB) was evaluated using Tafel polarization and electrochemical impedance spectroscopy techniques. The effect of inhibitor concentration and temperature on the corrosion inhibition efficiency (% IE) of HPB was studied and discussed. It is observed that the inhibition efficiency increased with increase in inhibitor concentration and also with increase in temperature for a give inhibitor concentration. The polarization study revealed that HPB acts as a mixed type of inhibitor by inhibiting both anodic and cathodic reactions. The corrosion inhibition process follows Langmuir�adsorption isotherm and takes place predominantly through chemisorption.

Item Type: Article
Subjects: Engineering > MIT Manipal > Chemistry
Engineering > MIT Manipal > Printing and Media
Depositing User: MIT Library
Date Deposited: 27 Apr 2016 10:11
Last Modified: 27 Apr 2016 10:11
URI: http://eprints.manipal.edu/id/eprint/145924

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