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IJCT Vol.11(3) [May 2004] >


Title: Corrosion inhibition by caffeine – Mn2+ system
Authors: Anthony, Noreen
Malarvizhi, E
Maheshwari, P
Rajendran, Susai
Palaniswamy, N
Keywords: Corrosion inhibition
caffeine-Mn2+ system
carbon steel
chloride ion environment
sodium dodecyl sulphate
Issue Date: May-2004
Publisher: CSIR
IPC CodeC23F 11/00
Abstract: The inhibition efficiency of caffeine in controlling corrosion of carbon steel immersed in 60 ppm of Cl- ion environment has been evaluated, in the absence and presence of Mn2+ ions, by weight loss method. Influence of sodium dodecyl sulphate, pH and immersion period on the inhibition efficiency of the caffeine-Mn2+ ion system has also been investigated. The protective film formed on the metal surface has been analysed by FTIR spectra. The protective film consists of Fe2+ - caffeine complex and Mn(OH)2.
Page(s): 346-350
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.11(3) [May 2004]

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