0872-1904 0872-1904 S0872-19042009000500004 India India India India 00 00 2009 00 00 2009 27 5 555 564

Stainless Steel Electrodeposited with Zinc is not Good for Storing Thiourea Solution

S. Rajendran, 1, * V. Agnes Brigita, 2 J. Manivannan,3J. Jeyasundari 4

1 Corrosion Research Centre, Post Graduate and Research, Department of Chemistry, G.T.N Arts College, Dindigul -624005, Tamil Nadu, India.

2RVS College of Education, RVS Nagar, Dindigul – 624005, Tamil Nadu, India

3 Department of Chemistry, Chettinad College of Engineering and Technology, Karur-639114, Tamil Nadu, India.

4Department of Chemistry, SVN College, Madurai, India

 

Received 14 February 2009; accepted 24 September 2009

 

Abstract

]]> The use of stainless steel 304(SS) tanks to deposit thiourea in industry has been evaluated by studying the corrosion behaviour in 1% thiourea solution, before and after zinc plating.Weight loss method, 1% copper sulphate test, polarization study and AC impedance spectra have been used.The corrosion resistance of SS decreased when zinc was used for electrodeposition.Hence SS vessels electroplated with zinc should not be used to store thiourea solution, in industry.

Keywords: stainless steel, zinc plating, corrosion, thiourea, case study.

 

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*Corresponding author. E-mail address: srmjoany@sify.com.

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