The Inhibitory Properties of the Fagopyrum Esculentum Groats Boiling Extracts on Corrosion of the Mild Steel in Acidic Environments
DOI:
https://doi.org/10.24193/subbchem.2024.2.04Keywords:
Fagopyrum esculentum, common buckwheat, acid medium corrosion inhibition, gravimetric study, electrochemical study, Langmuir adsorption isothermAbstract
The inhibitory ability of the boiling extracts from the groats of Fagopyrum esculentum on the corrosion of mild steel EN Fe37-3FN in 0.5 M hydrochloric acid and 0.5 M sulphuric acid media was investigated using gravimetric, electrochemical, and EIS methods. It was shown that the addition of 100 mg/l of the Fagopyrum esculentum groat extract reduces the corrosion rate by 50%, and that of of 1 g/l and more – by 75%. The adsorption of the extract components on a steel surface follows the Langmuir adsorption model, and the nature of adsorption is physical. The Fagopyrum esculentum groats extract shows itself as perspective and environmentally friendly substance for reducing the steel corrosion rate in acidic environments.
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