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CONTRIBUTION TO ADSORPTION OF AROMATIC-AMINES ON MILD-STEEL SURFACE FROM HCL SOLUTIONS BY IMPEDANCE, UV, AND RAMAN-SPECTROSCOPY

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Title CONTRIBUTION TO ADSORPTION OF AROMATIC-AMINES ON MILD-STEEL SURFACE FROM HCL SOLUTIONS BY IMPEDANCE, UV, AND RAMAN-SPECTROSCOPY
 
Creator BANERJEE, G
MALHOTRA, SN
 
Subject inhibitors
corrosion inhibitor
adsorption
potential of zero charge
 
Description Generally, aromatic amines are regarded as effective inhibitors for pickling and acid cleaning of mild steel in hydrochloric acid. Most previous studies advocate the view that the inhibition is a result of adsorption of the pi-electron cloud of the aromatic ring on the iron and steel surface through vacant d-pi orbital of iron. Later studies indicate a possible electrostatic adsorption or chemisorption due to synergistic action between halide ion and amine molecules as responsible for inhibition. In this paper, an attempt is made to study the mechanism of adsorption by using the concept of phi-scale of potential as proposed by Antropov. The potential of zero charge (PZC) of mild steel is studied by two different techniques, and the mechanism of adsorption thus predicted has been found to corroborate the results of in situ Raman scattering study.
 
Publisher NATL ASSN CORROSION ENG
 
Date 2011-08-19T01:17:44Z
2011-12-26T12:55:59Z
2011-12-27T05:43:49Z
2011-08-19T01:17:44Z
2011-12-26T12:55:59Z
2011-12-27T05:43:49Z
1992
 
Type Article
 
Identifier CORROSION, 48(1), 10-15
0010-9312
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10178
http://hdl.handle.net/10054/10178
 
Language en