Inhibitive action of ferrous gluconate on aluminum alloy in saline environment.
Popoola, Patricia Abimbola Idowu Omotayo, Sanni Loto, Cleophas A. Popoola, Olawale Muhammed
Popoola, Patricia Abimbola Idowu
Omotayo, Sanni
Loto, Cleophas A.
Popoola, Olawale Muhammed
Citations
Altmetric:
Abstract
The corrosion of aluminum in saline environment in the presence of ferrous gluconate was studied using weight loss and linear polarization methods. The corrosion rates were studied in different concentrations of ferrous gluconate 0.5, 1.0, 1.5, and 2.0 g/mL at 28∘ C. Experimental results revealed that ferrous gluconate in saline environment reduced the corrosion rate of aluminum alloy at the different concentrations studied. The minimum inhibition efficiency was obtained at 1.5 g/mL concentration of inhibitor while the optimum inhibition efficiency was achieved with 1.0 g/mL inhibitor concentration. The results showed that adsorption of ferrous gluconate on the aluminium alloy surface fits Langmuir adsorption isotherm. The potentiodynamic polarization results showed that ferrous gluconate is a mixed type inhibitor. Ferrous gluconate acted as an effective inhibitor for aluminium alloy within the temperature and concentration range studied. The data obtained from weight loss and potentiodynamic polarization methods were in good agreement.
Description
Date
2013-11-01
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Research Projects
Organizational Units
Journal Issue
Keywords
Potentiodynamic polarization, Arachis hypogaea, Corrosion inhibitors