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Aqueous Extract of Kalmegh (Andrographis paniculata) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution
Joint Authors
Singh, V. K.
Quraishi, Mumtaz Ahmad
Singh, Ambrish
Source
International Journal of Corrosion
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-08-01
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The inhibition of the corrosion of mild steel in hydrochloric acid solution by the extract of Kalmegh (Andrographis paniculata) leaves extract has been studied using weight loss, electrochemical impedance spectroscopy, linear polarization, and potentiodynamic polarization techniques.
Inhibition was found to increase with increasing concentration of the extract.
The effect of temperature, immersion time, and acid concentration on the corrosion behavior of mild steel in 1 M HCl with addition of extract was also studied.
The inhibition was assumed to occur via adsorption of the inhibitor molecules on the metal surface.
The adsorption of the molecules of the extract on the mild steel surface obeyed the Langmuir adsorption isotherm.
The protective film formed on the metal surface was analyzed by FTIR spectroscopy.
The results obtained showed that the extract of Kalmegh (Andrographis paniculata) leaves extract could serve as an effective inhibitor of the corrosion of mild steel in hydrochloric acid media.
American Psychological Association (APA)
Singh, Ambrish& Singh, V. K.& Quraishi, Mumtaz Ahmad. 2010. Aqueous Extract of Kalmegh (Andrographis paniculata) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution. International Journal of Corrosion،Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-459609
Modern Language Association (MLA)
Singh, Ambrish…[et al.]. Aqueous Extract of Kalmegh (Andrographis paniculata) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution. International Journal of Corrosion No. 2010 (2010), pp.1-10.
https://search.emarefa.net/detail/BIM-459609
American Medical Association (AMA)
Singh, Ambrish& Singh, V. K.& Quraishi, Mumtaz Ahmad. Aqueous Extract of Kalmegh (Andrographis paniculata) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution. International Journal of Corrosion. 2010. Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-459609
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-459609