Corrosion inhibition and adsorption behaviour of (2E)-2-(3-hydroxy-2-methoxybenzylidene) hydrazinecarbothiamide on mild steel in 1M HCl

Kumari, Preethi P and Shetty, Prakash and Rao, Suma and Sunil, Dhanya (2014) Corrosion inhibition and adsorption behaviour of (2E)-2-(3-hydroxy-2-methoxybenzylidene) hydrazinecarbothiamide on mild steel in 1M HCl. Revue Roumaine de Chimie, 59 (5). pp. 323-333. ISSN 0035-3930

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Abstract

Corrosion behaviour of mild steel in 1 M hydrochloric acid solution containing various concentrations of (2E)-2-(3-hydroxy- 2-methoxybenzylidene) hydrazinecarbothiamide (HMBHC) was studied by Tafel polarization technique and electrochemical impedance spectroscopy technique at different temperatures. The inhibition efficiency of HMBHC increased with the increase in its concentration and in temperature. Polarization study showed that the HMBHC acted as a mixed type inhibitor and its adsorption on mild steel surface was found to follow Langmuir’s adsorption isotherm. The formation of protective film was confirmed by scanning electron microscopy study.

Item Type: Article
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 20 Dec 2014 10:09
Last Modified: 20 Dec 2014 10:09
URI: http://eprints.manipal.edu/id/eprint/141320

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