CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies
Fouda, A., Killa, H., Farouk, A., Salem, A. (2019). CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies. EKB Journal Management System, 62(10), 1879-1894. doi: 10.21608/ejchem.2019.7656.1649
A.S. Fouda; H.M. Killa; A. Farouk; A.M. Salem. "CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies". EKB Journal Management System, 62, 10, 2019, 1879-1894. doi: 10.21608/ejchem.2019.7656.1649
Fouda, A., Killa, H., Farouk, A., Salem, A. (2019). 'CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies', EKB Journal Management System, 62(10), pp. 1879-1894. doi: 10.21608/ejchem.2019.7656.1649
Fouda, A., Killa, H., Farouk, A., Salem, A. CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies. EKB Journal Management System, 2019; 62(10): 1879-1894. doi: 10.21608/ejchem.2019.7656.1649

CalicotomeExtract as a Friendly Corrosion Inhibitor forCarbon Steel in Polluted NaClSolution: Chemical and Electrochemical Studies

Egyptian Journal of Chemistry
Article 9, Volume 62, Issue 10, October 2019, Page 1879-1894  XML PDF (2.36 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.7656.1649
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Authors
A.S. Foudaorcid 1; H.M. Killa2; A. Farouk2; A.M. Salem email 2
1Chemistry Department, Faculty of Science, Mansoura University, Mansoura-35516,
2Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt.
Abstract
This study describes the ability of Calicotome extract (CE) to inhibit the corrosion of C-steel in polluted NaCl (3.5%NaCl+ 16 ppm Na2S) solution which carried out using chemical (weight loss, WL)and electrochemical(potentiodynamic polarization, PP, electrochemical impedance spectroscopy, EIS and electrochemical frequency modulation, EFM)techniques. Temkin isotherm was tested to describe the adsorption behavior of C-steel surface. The PP measurements revealed that the adsorption of extract affects both anodic and cathodic reactions. The protection efficiency (%IE) increases by rising concentrations, while it lowers with raisingthe temperature.The C-steel surface morphology in the presence and absence of CE has been tested via Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and (FTIR) spectroscopy measurements. Theobtained data fromdifferent techniquesare in good agreement.
Keywords
Corrosion; Calicotome extract (CE); C-steel, SEM; AFM and FTIR
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