The effects of Phyllanthus amarus extract on corrosion and kinetics of corrosion process of aluminum in alkaline solution
| Autor: | Olusegun K. Abiola, J. O. E. Otaigbe |
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| Rok vydání: | 2009 |
| Předmět: |
inorganic chemicals
General Chemical Engineering Kinetics Metallurgy technology industry and agriculture chemistry.chemical_element Langmuir adsorption model General Chemistry complex mixtures Phyllanthus amarus Corrosion symbols.namesake Corrosion inhibitor chemistry.chemical_compound Adsorption chemistry Aluminium Scientific method symbols General Materials Science Nuclear chemistry |
| Zdroj: | Corrosion Science. 51:2790-2793 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2009.07.006 |
| Popis: | The effect of the extract of Phyllanthus amarus leaves on the corrosion of aluminum in 2 M NaOH solution was studied using chemical technique. The extract acts as corrosion inhibitor, with 76% efficiency at the highest concentration in the alkaline environment and the inhibition efficiency increased with increasing concentration of the extract. The adsorption of the inhibitor on aluminum surface was in accordance with the Langmuir adsorption isotherm. A zero-order kinetics relationship with respect to aluminum was obtained with and without the extract from the kinetics treatment of the data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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