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Corrosion Protection of Carbon Steel in Acidic Solution by Using YlangYlang Oil as Green Inhibitor

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Thu, 2016-01-28 12:17 — Ismail Warad
Journal Title, Volume, Page: 
Moroccan Journal of Chemistry , 4(1) 101-111
Year of Publication: 
2016
Link: 
http://revues.imist.ma/?journal=morjchem&page=article&op=view&path[]=3978
Authors: 
H. Lgaz
Laboratory separation processes, Faculty of Science, University Ibn Tofail PO Box 242, Kenitra, Morocco
Current Affiliation: 
Laboratory of Applied Chemistry and Environment, ENSA, Ibn Zohr University, PO Box 1136, 80000 Agadir, Morocco
M. Belkhaouda
Current Affiliation: 
Laboratory of Applied Chemistry and Environment, ENSA, Ibn Zohr University, PO Box 1136, 80000 Agadir, Morocco
M. Larouj
Current Affiliation: 
Laboratory separation processes, Faculty of Science, University Ibn Tofail PO Box 242, Kenitra, Morocco
R. Salghi
Corresponding author. E-mail(R. Salghi
Current Affiliation: 
Laboratory of Applied Chemistry and Environment, ENSA, Ibn Zohr University, PO Box 1136, 80000 Agadir, Morocco
[email protected]
S. Jodeh
Current Affiliation: 
Department of Chemistry, An-Najah National University, P. O. Box 7, Nablus, Palestine
I. Warad
Current Affiliation: 
Department of Chemistry, An-Najah National University, P. O. Box 7, Nablus, Palestine
[email protected]
Preferred Abstract (Original): 
The inhibition effect of ylang-ylang oil (YYO) and their adsorption on carbon steel surface in hydrochloric acid was realized at temperatures varying between 308 and 338 K by weight loss, EIS, and potentiodynamic polarization techniques. The tested compound showed inhibition efficiency that is superior 87 % for a concentration equal to 1.0 g/L. Polarization measurements indicate that the examined oil act as a mixed inhibitor with predominant anodic effectiveness and the protection efficiency increases with inhibitor concentration but this effect decreased with increasing of temperature. Data obtained from EIS studies were analyzed to model inhibition process through appropriate equivalent circuit models. The adsorption of YYO on carbon steel surface obeys Langmuir adsorption isotherm in acid medium and the activation were determined and discussed.
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