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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 57, Number 2
JKCSEZ 57(2)
April 20, 2013

Title	Extract of Camellia sinensis as Green Inhibitor for the Corrosion of Mild Steel in Aqueous Solution
Author	Abd El Aziz S Fouda*, Dina Mekkia, Abeer H Badr
Keywords	Corrosion inhibition, Mild steel, Aluminum sulfate, Chloride solution, Camellia sinensis extract
Abstract	Corrosion inhibition of mild steel used in water station in 35 ppm aluminum sulfate and 10 ppm chloride solution by Camellia sinensis leaves extract was studied using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy techniques at 30 oC. Results show that the inhibition efficiency increases with increasing concentration of the extract and decreases with increasing temperature. Inhibitive effect was afforded by adsorption of the extract’s components which was found to accord with Langmuir adsorption isotherm. Inhibition mechanism is deduced from the temperature dependence of the inhibition efficiency and was further corroborated by the values of activation parameters obtained from the experimental data.
Page	264 - 271
Full Text	PDF

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