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IJCT Vol.16(4) [July 2009] >


Title: Cetyl trimethylammonium bromide as corrosion inhibitor for mild steel in acidic medium
Authors: Sharma, Mukta
Chawla, Jyoti
Singh, Gurmeet
Keywords: Corrosion inhibitors
Surfactants
Mild steel
Adsorption
Issue Date: Jul-2009
Publisher: CSIR
Abstract: The inhibitive effect of cetyl trimethylammonium bromide (CTAB) on acid corrosion of mild steel in sulphuric acid at different temperatures has been investigated. Galvanostatic and potentiostatic studies were performed to determine the corrosion current, inhibition efficiency, passivation current and passivation potential range. The parameters so obtained were used to explain the effectiveness of inhibitor when present in different concentrations. Scanning Electron Microscopic (SEM) studies also help to understand the changes that take place on the surface layer with respect to change in CTAB concentration. The extent of corrosion inhibition has also been evaluated by comparing the micrographs obtained from SEM. The results obtained are in direct agreement with the electrochemical studies.
Page(s): 339-343
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.16(4) [July 2009]

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