Inhibiting effect of some synthesized surfactants from petroleum oils on the corrosion of aluminium in hydrochloric acid solution

Inhibiting effect of some synthesized surfactants from petroleum oils on the corrosion of... Anionic surfactants [namely, gasoil sulfonate (GOS), kerosene sulfonate (KES), heavy solvent sulfonate (HSS) and total gasoline sulfonate (TGS)] were obtained from Algerian petroleum fractions. Their inhibiting effect on aluminium corrosion in hydrochloric solution (1 M HCl) is studied, using weight loss measurements, electrochemical polarization, and electrochemical impedance spectroscopy methods. The results obtained from different techniques are in good agreement and show that surfactants act predominately as cathodic inhibitors. The inhibition efficiency increases with increasing inhibitor concentration and decreases in the order: GOS > KES > HSS > TGS. The adsorption process of GOS was also studied in the temperature range of 293–323 K and reveals that the inhibitor adsorption onto Al is a physisorption-type, spontaneous and exothermic. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Inhibiting effect of some synthesized surfactants from petroleum oils on the corrosion of aluminium in hydrochloric acid solution

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1222-0
Publisher site
See Article on Publisher Site

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