Paper
Corrosion Inhibition of Carbon Steel in HCl by Cyanoacetate and Oxobutanoate Derivatives
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Authors:
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A. S.Fouda; H. S.Gadow
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Abstract
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The corrosion behavior of carbon steel in HCl solution containing various concentrations of cyanoacetate and oxobutanoate derivatives was investigated. The corrosion inhibitive action of these compounds on carbon steel was studied using chemical and electrochemical methods. The results showed that the inhibition efficiency increases by increasing the concentration and decreases by increasing the temperature. The synergistic effect of potassium iodide (KI) in presence of various concentrations of these compounds was also investigated. Polarization curves revealed that these compounds are mixed type inhibitors. The adsorption of these compounds follows the kinetic thermodynamic model and Temkin adsorption isotherm. Some thermodynamic parameters of activation and adsorption processes were also determined and discussed.
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Keywords
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Carbon Steel; Corrosion Inhibition; HCl; Cyanoacetate and Oxobutanoate Derivatives
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StartPage
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151
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EndPage
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160
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Doi
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