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Calotropis gigantea Leaves Ark Used as Corrosion Inhibitor for Aluminum in Hydrochloric Acid | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

Calotropis gigantea Leaves Ark Used as Corrosion Inhibitor for Aluminum in Hydrochloric Acid

Author(s): Desai PS

Inhibition of aluminum corrosion in 0.4-0.6 M hydrochloric acid solution in the presence and absence of using Calotropis gigantea (Aankado) leaves ark’s has been studied employing gravimetric and electrochemical techniques. The results showed that the C. gigantea barks could serve as an effective inhibitor for the corrosion of aluminum in HCl solutions. Inhibition was found to increase with increasing concentration of the extract but decreases with increasing acid concentration. The adsorption study support that Freundlich isotherm best fit to the metal surface interaction with the C. gigantea leaves ark’s with the finest exposure time for the adsorb to the metal surface at all concentrations. Polarization study reveals that the inhibitors functions as a mixed type of inhibitor.


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