Journal :   Asian Journal of Research in Chemistry

Volume No. :   6

Issue No. :  10

Year :  2013

Pages :   613-617

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Corrosion Inhibition of Carbon Steel in RO water Using Trisodium Citrate - Zn2+ System



Address:   T. Deepa1, C. Thangavelu 2*, M. Sekar3 and R. Sudhakaran4
1Department of Chemistry, Govt. Arts College (Autonomous), Karur-639 005, TN, India.
2Department of Chemistry, Govt. Arts College for Women, Nilakottai, Dindigul – 624 202, TN, India.
3Department of Chemistry, Periyar E.V.R College (Autonomous), Trichirappalli-620 023, TN, India.
4Department of Chemistry, Govt. Arts college, Tiruchirappalli – 620 022, TN, India
*Corresponding Author
DOI No: 10.5958/0974-4150.2015.00097.8

ABSTRACT:
The Inhibition Efficiency (IE) of Trisodium Citrate (TSC) in controlling corrosion of carbon steel in RO water in the absence and presence of Zn2+ has been evaluated by weight-loss method. The formulation consisting of 150ppm TSC and 10ppm Zn2+ has 72.5% IE. It is found that the inhibition efficiency of TSC increases with the addition of Zn2+ion. A synergistic effect exists between TSC & Zn2+. Polarization study and characterization surface analysis studies confirm the protection of the carbon steel surface by inhibitive film. A suitable mechanism for corrosion inhibition has been proposed based on the results obtained from the above studies.
KEYWORDS:
Carbon Steel, Corrosion Inhibition, Trisodium Citrate, RO Water.
Cite:
T. Deepa, C. Thangavelu, M. Sekar, R. Sudhakaran. Corrosion Inhibition of Carbon Steel in RO water Using Trisodium Citrate - Zn2+ System.Asian J. Research Chem. 8(10): October 2015; Page 613-617.
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