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Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution

Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at vari...

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Autores principales: Agi, Augustine, Junin, Radzuan, Rasol, Muhammad, Gbadamosi, Afeez, Gunaji, Radhika
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082518/
https://www.ncbi.nlm.nih.gov/pubmed/30089104
http://dx.doi.org/10.1371/journal.pone.0200595
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author Agi, Augustine
Junin, Radzuan
Rasol, Muhammad
Gbadamosi, Afeez
Gunaji, Radhika
author_facet Agi, Augustine
Junin, Radzuan
Rasol, Muhammad
Gbadamosi, Afeez
Gunaji, Radhika
author_sort Agi, Augustine
collection PubMed
description Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–90°C. The weight loss data was compared to the electrochemical by the application of Faraday’s law for the conversion of corrosion rate data from one system to another. The inhibitive efficiency of RMT was compared with commercial inhibitor sodium benzotriazole (BTA-S). The best concentration of RMT was 20% (w/v), increase in concentration of RMT decreased the corrosion rate and increased the inhibitive efficiency. Increase in temperature increased the corrosion rate and decreased the inhibitive efficiency but, the rate of corrosion was mild with RMT. The FTIR result shows the presence of hydroxyl group, aromatic group, esters and the substituted benzene group indicating the purity of the tannin. The trend of RMT was similar to that of BTA-S, but its inhibitive efficiency for carbon-steel was poor (6%) compared to RMT (59%). BTA-S was efficient for copper (76%) compared to RMT (74%) at 40% (w/v) and 20% (w/v) concentration respectively. RMT was efficient even at low concentration therefore, the use of RMT as a cost effective and environmentally friendly corrosion inhibiting agent for carbon steel and copper is herein proposed.
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spelling pubmed-60825182018-08-28 Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution Agi, Augustine Junin, Radzuan Rasol, Muhammad Gbadamosi, Afeez Gunaji, Radhika PLoS One Research Article Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–90°C. The weight loss data was compared to the electrochemical by the application of Faraday’s law for the conversion of corrosion rate data from one system to another. The inhibitive efficiency of RMT was compared with commercial inhibitor sodium benzotriazole (BTA-S). The best concentration of RMT was 20% (w/v), increase in concentration of RMT decreased the corrosion rate and increased the inhibitive efficiency. Increase in temperature increased the corrosion rate and decreased the inhibitive efficiency but, the rate of corrosion was mild with RMT. The FTIR result shows the presence of hydroxyl group, aromatic group, esters and the substituted benzene group indicating the purity of the tannin. The trend of RMT was similar to that of BTA-S, but its inhibitive efficiency for carbon-steel was poor (6%) compared to RMT (59%). BTA-S was efficient for copper (76%) compared to RMT (74%) at 40% (w/v) and 20% (w/v) concentration respectively. RMT was efficient even at low concentration therefore, the use of RMT as a cost effective and environmentally friendly corrosion inhibiting agent for carbon steel and copper is herein proposed. Public Library of Science 2018-08-08 /pmc/articles/PMC6082518/ /pubmed/30089104 http://dx.doi.org/10.1371/journal.pone.0200595 Text en © 2018 Agi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Agi, Augustine
Junin, Radzuan
Rasol, Muhammad
Gbadamosi, Afeez
Gunaji, Radhika
Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title_full Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title_fullStr Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title_full_unstemmed Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title_short Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
title_sort treated rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082518/
https://www.ncbi.nlm.nih.gov/pubmed/30089104
http://dx.doi.org/10.1371/journal.pone.0200595
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