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Surface Protection of Carbon Steel by Butanesulphonic Acid-Zinc Ion System

Author Affiliations

  • 1PG Department of Chemistry, Jayaraj Annapackiam College for Women, Periyakulam-625601, INDIA
  • 2Corrosion Research Centre, PG and Research Department of Chemistry, GTN Arts College, Dindigul-624005, INDIA

Res.J.chem.sci., Volume 2, Issue (12), Pages 21-26, December,18 (2012)


Inhibition of corrosion of carbon steel in dam water by the sodium salt of butanesulphonic acid (SBS) in combination with Zinc ion (Zn2+) has been studied using weight-loss and potentiodynamic polarization methods. Results of weight loss method indicated that inhibition efficiency (IE) increased with increasing inhibitor concentration. A synergistic effect exists between SBS and Zn2+. Polarization study reveals that SBS-Zn2+ system functions as a mixed type inhibitor. These observations have been supported by surface morphology studies using Atomic Force Microscopy (AFM) studies carried out on the carbon steel samples in the absence and presence of inhibitor.


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