期刊
PORTUGALIAE ELECTROCHIMICA ACTA
卷 27, 期 5, 页码 631-643出版社
SOCIEDADE PORTUGUESA ELECTROQUIMICA
DOI: 10.4152/pea.200905631
关键词
C-steel corrosion inhibitors; phenyl phthalimide; adsorption
The effect of some phenyl phthalimide derivatives on the corrosion of carbon steel in 0.5 M H2SO4 solution was studied using weight loss and galvanostatic polarization techniques. The percentage inhibition efficiency was found to increase with increasing concentration of inhibitor and with decreasing temperature. Inhibition was explained by adsorption of these compounds on the metal surface. The adsorption follows Freundlich adsorption isotherms. Some thermodynamic functions were computed and discussed.
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