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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Environmental factors affecting the corrosion behaviour of reinforcing steel. VI. Benzotriazole and its derivatives as corrosion inhibitors of steel
Corrosion Science, Volume 87, Year 2014
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Description
Benzotriazole and some of its derivatives cause inhibition of corrosion of reinforcing steel in saturated naturally aerated Ca(OH)2 solutions contaminated by Cl-. The inhibition efficiency of these compounds depends on both the inhibitor type and concentration, as well as, on the chloride ions content. Inhibition by these compounds is assumed to take place through the formation of iron-chloro-benzotriazoles complexes and/or the adsorption of the deprotonated species on the steel surface according to Langmuir's isotherm. The thermodynamic parameters Kads and δG°ads for the adsorption process are calculated and discussed. Benzotriazoles shift the pitting corrosion potential into the noble direction accounting for increased resistance to pitting. © 2014 Elsevier Ltd.
Authors & Co-Authors
Abd El-Haleem, Salah M.
Egypt, Zagazig
Faculty of Science
Abd El-Wanees, Salah
Egypt, Zagazig
Faculty of Science
Saudi Arabia, Tabuk
University of Tabuk
Radwan, Ahmed Bahgat
Egypt, Zagazig
Faculty of Science
Qatar, Doha
Qatar University
Statistics
Citations: 85
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1016/j.corsci.2014.06.043
ISSN:
0010938X