Carbon steel | An-Najah Staff

Inhibitive Action of Capparis Spinosa Extract on the Corrosion of Carbon Steel in an Aqueous Medium of Hydrochloric Acid

Thu, 2015-09-17 14:58 — Ismail Warad

Journal Title, Volume, Page:

Journal of Mineral Metal and Material Engineering, 2015, 1, 1-7 1

Year of Publication:

2015

Authors:

O. Id El Mouden

Laboratory of Environmental Engineering and Biotechnology, ENSA, Université Ibn Zohr, PO Box 1136, 80000 Agadir, Morocco

A. Anejjar

Laboratory of Environmental Engineering and Biotechnology, ENSA, Université Ibn Zohr, PO Box 1136, 80000 Agadir, Morocco

R. Salghi

Laboratory of Environmental Engineering and Biotechnology, ENSA, Université Ibn Zohr, PO Box 1136, 80000 Agadir, Morocco

S. Jodeh

Department of Chemistry, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine

O. Hamed

Department of Chemistry, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine

M. Zougagh

Regional Institute for Applied Chemistry Research, IRICA, E-13004, Ciudad Real, Spain

I. Warad

Department of Chemistry, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, P.O. Box 7, Nablus, Palestine

[email protected]

R.S. Dassanayake

Fiber and Biopolymer Research Institute, Texas Tech University; Lubbock, TX, 79403, USA

Preferred Abstract (Original):

Capparidaceae (Capparis spinosa), is a common perennial shrub and woody plant, typically Mediterranean, largely used in folk medicine in the Mediterranean countries including Morocco. The effect of Capparis Spinosa (CSE) on the corrosion inhibition of carbon steel in 1 M hydrochloric acid (HCl) solution was evaluated by several analytical methods, among these are weight loss method, potentiodynamic polarization and impedance spectroscopy (EIS).
Results showed that CSE inhibits the corrosion of steel and the inhibition is more efficient at high concentration of CSE. Results also showed that, the inhibition decrease at higher temperature. Potentiodynamic polarization studies clearly reveal that CSE acts as a cathodic inhibitor. The adsorption of Capparis Spinosa on carbon steel was found to obey the Langmuir adsorption isotherm. The activation energies and enthalpies of the corrosion process of carbon steel in acidic medium of CSE were also calculated.

Inhibitive Action of Hydroxylammonium Sulfate on the Corrosion of Carbon Steel in Hydrochloric Acid Medieum and their Adsorption Characteristics

Thu, 2014-10-09 13:32 — Shehdeh Jodeh

Journal Title, Volume, Page:

morocco J of chemistry 07/2014

Year of Publication:

2014

Link:

http://revues.imist.ma/?journal=morjchem&page=article&op=view&path[]=2022

Authors:

Shehdeh Jodeh

Department of Chemistry, An-Najah National University, P. O. Box 7, Nablus, Palestine

Current Affiliation:

Department of Chemistry, AN-Najah National University, P. O. Box 7, Nablus, State of Palestine

rachid salghi

Laboratory of Environmental Engineering and Biotechnology, ENSA, University Ibn Zohr, PO Box 1136, 80000 Agadir, Morocco

belkher Hammouti

A. Anejjar

S. Al-Deyab

A. M. Elhassane

Preferred Abstract (Original):

The inhibitive action of Hydroxylammonium sulfate ((NH3OH)2SO4) (HAS) on corrosion inhibition of carbon steel (CS) in 1M HCl was studied by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and effect of temperature. The measurements show that inhibition efficiencies increases with increasing of HAS concentrations but decreases with increasing temperatures. This reveals that inhibitive action of inhibitor was mainly due to adsorption on the carbon steel surface and blocked the active sites. The above results showed that HAS acted as a mixed-type corrosion inhibitor. The adsorption of HAS on the carbon steel surface obeyed the Langmuir adsorption isotherm. This was supported by the impedance measurements which showed a change in the charge transfer resistance and double layer capacitance indicating adsorption of HAS on the carbon steel surface. Thermodynamic parameters of studied inhibitor were calculated and discused.

Inhibitive Properties and Thermodynamic Characterization of Quinoxaline Derivative on Carbon Steel Corrosion in Acidic Medium

Tue, 2013-04-30 07:41 — Ismail Warad

Journal Title, Volume, Page:

Der Pharmacia Lettre, 2013, 5 (2):43-53

Year of Publication:

2013

Link:

http://scholarsresearchlibrary.com/dpl-vol5-iss2/DPL-2013-5-2-43-53.pdf

Authors:

H. Zarrok

Laboratoire des procèdes de séparation, Faculté des Sciences, Université Ibn Tofail, Kénitra, Morocco

A. Zarrouk

LCAE-URAC18, Faculté des Sciences, Université Mohammed 1 er, Oujda, Morocco

R. Salghi

Equipe de Génie de l’Environnement et Biotechnologie, ENSA, Université Ibn Zohr, BP1136 Agadir, Morocco

M. Assouag

Laboratoire des procèdes de séparation, Faculté des Sciences, Université Ibn Tofail, Kénitra, Morocco

B. Hammouti

H. Oudda

Laboratoire des procèdes de séparation, Faculté des Sciences, Université Ibn Tofail, Kénitra, Morocco

S. Boukhris

Laboratoire de Synthèse Organique, Organométallique et Théorique, Faculté des Sciences, Université Ibn Tofail, B.P. 133, 14000 Kenitra, Morocco

S. S. Al Deyab

Petrochemical Research Chair, Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

I. Warad

Department of Chemistry, Science College. AN-Najah National University, P. O. Box 7, Nablus, State of Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Preferred Abstract (Original):

The inhibition of ethyl 2-(4-(2-ethoxy-2-oxoethyl)-2-p-tolylquinoxalin-1(4H)-yl) acetate (Q3) on the corrosion of carbon steel in 1.0 M HCl at 308-343 K was studied by gravimetric method. Results obtained show that Q3 acts as inhibitor for carbon steel in hydrochloric solution. The inhibition efficiency was found to increase with increase in Q3 but decreased with temperature, which is suggestive of physical adsorption mechanism although chemisorption may play a part. The adsorption of Q3 onto the carbon steel surface was found to follow the Langmuir adsorption isotherm. Both kinetic parameters (activation energy, pre-exponential factor, enthalpy of activation and entropy of activation) and thermodynamics of adsorption (enthalpy of adsorption, entropy of adsorption and Gibbs free energy) were calculated and discussed.