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Asian Journal of Research in Chemistry
Year : 2019, Volume : 12, Issue : 4
First page : ( 217) Last page : ( 221)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2019.00041.5

A Study on the Potential Corrosion Inhibitor with expired water soluble povidone-Iodine ointment for Aluminum in aqueous HCl solution: Sustainable approach towards Inhibition of Aluminum Corrosion using the Medicinal waste Product

Raghavendra Narasimha*, Hublikar Leena V

Department of Chemistry, K.L.E. Society's P. C. Jabin Science College (Autonomous) Vidyanagar, Hubballi-580031

*Corresponding Author E-mail: rcbhat3@gmail.com

Online published on 19 December, 2019.

Abstract

Expired Povidone-iodine ointment has been investigated as potential corrosion inhibitor for controlling the Al corrosion process on Al submerged in the aqueous HCl solution. The present investigation clearly shows that, less Al corrosion has been observed in the case of Al pieces immersed in the acid solution containing different amounts of expired Povidone-iodine ointment. Weight loss, gasometric, Tafel plot and impedance techniques were used to detect the Al corrosion products and results of these techniques shows that, protective invisible layer formed on the Al surface by Povidone-iodine ointment which greatly protects the further dissolution of Al in the 3 M aqueous hydrochloric acid solution.

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Keywords

Weight loss, Gasometric, HCl solution, Tafel plot, Impedance.

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