Journal :   Asian Journal of Research in Chemistry

Volume No. :   8

Issue No. :  10

Year :  2015

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

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.
Carbon Steel, Corrosion Inhibition, Trisodium Citrate, RO Water.
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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