ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Abstract

Efficacy of Corrosion Inhibitive Properties of Gum Exudates of Azadirachta Indica on Carbon Steel in 1N Hydrochloric Acid

M. Malarvizhi1 and J. Mallika2

DOI : http://dx.doi.org/10.13005/ojc/340534


Abstract:

Corrosion mitigation of carbon steel by neem gum (gum exudates of Azadirachta indica) was investigated in 1N HCl medium. Effect of temperature and immersion period towards the mitigation process is studied usingweight loss method.Electrochemical studies combined with surface analysis indicate that corrosion reaction is inhibited by adsorption of GAI. Adsorption process is consistent with Langmuir isotherm. The inhibitor behaves as mixed type for carbon steel corrosion in 1N HCl. Surface morphology studies reveal adsorption on the metal surface.

Keywords:

Corrosion Inhibition; Carbon Steel; Gum Exudates of Azadirachta Indica; HCl; SEM

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