Acalypha torta Leaf Extract as Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution
| Autor: | Punith Kumar M. Krishnegowda, Venkatarangaiah T. Venkatesha, Shylesha B. Shivayogiraju, Pavithra M. Krishnegowda |
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| Rok vydání: | 2013 |
| Předmět: |
Chemistry
General Chemical Engineering Metallurgy technology industry and agriculture Langmuir adsorption model Hydrochloric acid General Chemistry Electrochemistry Industrial and Manufacturing Engineering Corrosion Dielectric spectroscopy chemistry.chemical_compound symbols.namesake Corrosion inhibitor Adsorption symbols Polarization (electrochemistry) Nuclear chemistry |
| Zdroj: | Industrial & Engineering Chemistry Research. 52:722-728 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | The inhibitive action of ethanol extract of Acalypha torta leaves (EAL) on corrosion of mild steel in 1 M HCl solution was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy, chronoamperometric measurements, and scanning electron microscopic observations. The adsorption of EAL on mild steel follows a Langmuir adsorption isotherm, and the activation parameters governing the adsorption process were calculated and discussed. Polarization measurements reveal that the EAL acts as a mixed-type inhibitor. The inhibition efficiencies obtained from weight loss measurements and electrochemical tests were in good agreement. |
| Databáze: | OpenAIRE |
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