Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system

Corrosion inhibition of carbon steel in dam water by sodium heptane sulphonate (SHS) and zinc ion system was investigated using weight loss and potentiodynamic polarization methods. Results of weight loss method indicated that inhibition efficiency (IE) increased as the inhibitor concentration incre...

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Main Authors: C. MARY ANBARAS, SUSAI RAJENDRAN
Format: Article
Language:English
Published: International Association of Physical Chemists (IAPC) 2012-03-01
Series:Journal of Electrochemical Science and Engineering
Subjects:
Online Access:file:///D:/Dropbox/JESE/0_WEB/Articles/Vol_02/No_1/pdf/jESE_Vol2_No1_p1-18_2012.pdf
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author C. MARY ANBARAS
SUSAI RAJENDRAN
author_facet C. MARY ANBARAS
SUSAI RAJENDRAN
author_sort C. MARY ANBARAS
collection DOAJ
description Corrosion inhibition of carbon steel in dam water by sodium heptane sulphonate (SHS) and zinc ion system was investigated using weight loss and potentiodynamic polarization methods. Results of weight loss method indicated that inhibition efficiency (IE) increased as the inhibitor concentration increased. A synergistic effect existed between SHS and Zn2+. The influence of sodium potassium tartrate (SPT) on the IE of the SHS-Zn2+ system was evaluated. As the immersion period increased, the IE decreased. Polarization study revealed that SHS-Zn2+ system functioned as a cathodic inhibitor. AC impedance spectra revealed that a protective film was formed on the metal surface. The nature of the metal surface was analyzed by FTIR spectra, SEM and AFM analyses.
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spelling doaj.art-bddd30999d124c5ab700ef995420ac852022-12-21T23:57:10ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862012-03-0121118Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ systemC. MARY ANBARASSUSAI RAJENDRANCorrosion inhibition of carbon steel in dam water by sodium heptane sulphonate (SHS) and zinc ion system was investigated using weight loss and potentiodynamic polarization methods. Results of weight loss method indicated that inhibition efficiency (IE) increased as the inhibitor concentration increased. A synergistic effect existed between SHS and Zn2+. The influence of sodium potassium tartrate (SPT) on the IE of the SHS-Zn2+ system was evaluated. As the immersion period increased, the IE decreased. Polarization study revealed that SHS-Zn2+ system functioned as a cathodic inhibitor. AC impedance spectra revealed that a protective film was formed on the metal surface. The nature of the metal surface was analyzed by FTIR spectra, SEM and AFM analyses.file:///D:/Dropbox/JESE/0_WEB/Articles/Vol_02/No_1/pdf/jESE_Vol2_No1_p1-18_2012.pdfCarbon steelCorrosionElectrochemical techniquesFTIRSEMAFM
spellingShingle C. MARY ANBARAS
SUSAI RAJENDRAN
Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
Journal of Electrochemical Science and Engineering
Carbon steel
Corrosion
Electrochemical techniques
FTIR
SEM
AFM
title Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
title_full Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
title_fullStr Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
title_full_unstemmed Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
title_short Inhibition of corrosion of carbon steel by heptane sulphonic acid – Zn2+ system
title_sort inhibition of corrosion of carbon steel by heptane sulphonic acid zn2 system
topic Carbon steel
Corrosion
Electrochemical techniques
FTIR
SEM
AFM
url file:///D:/Dropbox/JESE/0_WEB/Articles/Vol_02/No_1/pdf/jESE_Vol2_No1_p1-18_2012.pdf
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