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Inhibitive effect of calcium gluconate and sodium molybdate on carbon steel

S.M.A. Shibli (Department of Chemistry, University of Kerala, Thiruvananthapuram, Kerala, India)
V. Anitha Kumary (Department of Chemistry, University of Kerala, Thiruvananthapuram, Kerala, India)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 August 2004

Abstract

There is an increasing demand for eco‐friendly inhibitors for use in cooling water systems. Both calcium gluconates and molybdate are eco‐friendly, non‐toxic chemicals. The corrosion inhibition of calcium gluconate and sodium molybdate on carbon steel in neutral aqueous media was evaluated by means of weight loss, electrochemical polarisation and impedance techniques. A synergistic effect was observed when these two eco‐friendly non‐toxic inhibitors were used in protecting carbon steel. A non‐linear relationship existed between the concentrations of the two inhibitors showing a synergistic effect.

Keywords

Citation

Shibli, S.M.A. and Anitha Kumary, V. (2004), "Inhibitive effect of calcium gluconate and sodium molybdate on carbon steel", Anti-Corrosion Methods and Materials, Vol. 51 No. 4, pp. 277-281. https://doi.org/10.1108/00035590410541355

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited