sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution
Triazine derivatives, namely, 2,4,6-tris(quinolin-8-yloxy)-1,3,5-triazine (T3Q), N2,N4,N6-tris(pyridin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (T3AMPy) and 2,2′,2′′-[(1,3,5-triazine-2,4,6-triyl)tris(azanediyl)] tris(ethan-1-ol) (T3EA) were synthesized and their inhibition of steel corrosion in hyd...
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doaj-a5312d527b134d5781ab84f290dcca542020-11-24T22:31:50ZengMDPI AGMolecules1420-30492016-03-0121443610.3390/molecules21040436molecules21040436sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic SolutionAyman El-Faham0Kholood A. Dahlous1Zeid A. AL Othman2Hamad A. Al-Lohedan3Gamal A. El-Mahdy4Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi ArabiaSurfactants Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaTriazine derivatives, namely, 2,4,6-tris(quinolin-8-yloxy)-1,3,5-triazine (T3Q), N2,N4,N6-tris(pyridin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (T3AMPy) and 2,2′,2′′-[(1,3,5-triazine-2,4,6-triyl)tris(azanediyl)] tris(ethan-1-ol) (T3EA) were synthesized and their inhibition of steel corrosion in hydrochloric acid solution was investigated using electrochemical techniques. The corrosion protection of the prepared compounds increased with increasing concentration and reached up to 98% at 250 ppm. The adsorption of T3Q, T3AMPy, and T3EA on the steel surface was in accordance with the Langmuir adsorption isotherm. The electrochemical results revealed that T3Q, T3AMPy and T3EA act as excellent organic inhibitors and can labeled as mixed type inhibitors. The efficiencies of the tested compounds were affected by the nature of the side chain present in the triazine ring, where T3EA gave the least inhibition while T3Q and T3AMPy gave higher and almost the same inhibition effects. The inhibition efficiencies obtained from the different electrochemical techniques were in good agreement.http://www.mdpi.com/1420-3049/21/4/436trisubstituted-s-triazineorganic inhibitorscorrosionsteelpolarization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ayman El-Faham Kholood A. Dahlous Zeid A. AL Othman Hamad A. Al-Lohedan Gamal A. El-Mahdy |
spellingShingle |
Ayman El-Faham Kholood A. Dahlous Zeid A. AL Othman Hamad A. Al-Lohedan Gamal A. El-Mahdy sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution Molecules trisubstituted-s-triazine organic inhibitors corrosion steel polarization |
author_facet |
Ayman El-Faham Kholood A. Dahlous Zeid A. AL Othman Hamad A. Al-Lohedan Gamal A. El-Mahdy |
author_sort |
Ayman El-Faham |
title |
sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution |
title_short |
sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution |
title_full |
sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution |
title_fullStr |
sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution |
title_full_unstemmed |
sym-Trisubstituted 1,3,5-Triazine Derivatives as Promising Organic Corrosion Inhibitors for Steel in Acidic Solution |
title_sort |
sym-trisubstituted 1,3,5-triazine derivatives as promising organic corrosion inhibitors for steel in acidic solution |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2016-03-01 |
description |
Triazine derivatives, namely, 2,4,6-tris(quinolin-8-yloxy)-1,3,5-triazine (T3Q), N2,N4,N6-tris(pyridin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (T3AMPy) and 2,2′,2′′-[(1,3,5-triazine-2,4,6-triyl)tris(azanediyl)] tris(ethan-1-ol) (T3EA) were synthesized and their inhibition of steel corrosion in hydrochloric acid solution was investigated using electrochemical techniques. The corrosion protection of the prepared compounds increased with increasing concentration and reached up to 98% at 250 ppm. The adsorption of T3Q, T3AMPy, and T3EA on the steel surface was in accordance with the Langmuir adsorption isotherm. The electrochemical results revealed that T3Q, T3AMPy and T3EA act as excellent organic inhibitors and can labeled as mixed type inhibitors. The efficiencies of the tested compounds were affected by the nature of the side chain present in the triazine ring, where T3EA gave the least inhibition while T3Q and T3AMPy gave higher and almost the same inhibition effects. The inhibition efficiencies obtained from the different electrochemical techniques were in good agreement. |
topic |
trisubstituted-s-triazine organic inhibitors corrosion steel polarization |
url |
http://www.mdpi.com/1420-3049/21/4/436 |
work_keys_str_mv |
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