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Author  |
Li, M.C.; Royer, M.; Stien, D.; Lecante, A.; Roos, C. |
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Title |
Inhibitive effect of sodium eperuate on zinc corrosion in alkaline solutions |
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Journal Article |
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Year |
2008 |
Publication |
Corrosion Science |
Abbreviated Journal |
Corrosion Sci. |
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Volume |
50 |
Issue |
7 |
Pages |
1975-1981 |
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Keywords |
zinc; concrete; EIS; alkaline corrosion; passivity |
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Abstract |
The effect of sodium eperuate prepared from Wallaba (Eperua falcata Aubl) extract on zinc corrosion was investigated in alkaline solutions with chloride ions (i.e., simulated concrete pore solutions) by using electrochemical techniques. Sodium eperuate inhibits the corrosion of zinc in 0.1 M NaCl solutions with pH 9.6. As its concentration increases to 1 g/L, the inhibition efficiency reaches approximately 92%. In alkaline solutions with pH 12.6, sodium eperuate has no adverse effect on passivity of zinc, and retards the chloride attack. These suggest that sodium eperuate is an effective inhibitor for the protection of zinc in alkaline environments. (c) 2008 Elsevier Ltd. All rights reserved. |
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Address |
[Li, M. C.; Royer, M.; Stien, D.] UMR ECOFOG, CNRS, F-97337 Cayenne, French Guiana, Email: mouchengli@yahoo.com.cn |
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Publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
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ISSN |
0010-938X |
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Notes |
ISI:000258543600021 |
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Call Number |
EcoFoG @ eric.marcon @ |
Serial |
132 |
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