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Asian Journal of Research in Chemistry
Year : 2015, Volume : 8, Issue : 1
First page : ( 16) Last page : ( 20)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2015.00004.8

Electrochemical and surface studies of eco – friendly inhibitor in potable water system

Sudhakaran R.1, Thangavelu C.2,*, Sekar M.3, Kasilingam T.3

1Department of Chemistry, Govt. Arts College, Tiruchirappalli – 22, Tamil Nadu India

2Department of Chemistry, Govt. Arts College for Women, Nillakkottai, Dindugul – 624208, Tamil Nadu, India

3Department of Chemistry, Periyar E. V. R. College (Autonomous), Tiruchirappalli – 23, Tamil Nadu, India

*Corresponding Author E-mail: sanjumetra@gmail.com

Abstract

Tafel curves and Nyquist plot measurements were performed on mild steel in potable water in the absence and presence of inhibitor formulations. The inhibitor namely: sodium gluconate and zinc ions. Results of potentiostatic polarization revealed that formulation function as mixed type inhibitor. Surface evaluation techniques like scanning electron microscope (SEM) and energy dispersive x-ray analysis (EDX) were used to determine the nature of the protective film formed onto mild steel surface.

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Keywords

Potable water, Tafel curves, Nyquist plot, SEM, EDX.

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