Mechanism of inhibition of corrosion of mild steel by polyacrylamide, phenyl phosphonate and Zn2+
- 1 April 1999
- journal article
- research article
- Published by Emerald in Anti-Corrosion Methods and Materials
- Vol. 46 (2), 111-116
- https://doi.org/10.1108/00035599910263288
Abstract
The formulation consisting of 50ppm polyacrylamide (PAA), 300ppm phenyl phosphonic acid (PPA) and 50ppm Zn2+ has 95 per cent inhibition efficiency in controlling corrosion of mild steel in a neutral aqueous environment, containing 60ppm Cl—, a situation commonly encountered in cooling water systems. A discussion of mechanistic aspects of corrosion inhibition is based on the results obtained from a potentiostatic polarization study, UV‐visible, FTIR and luminescence spectra. The protective film is found to be luminescent and to consist of Fe2+‐PAA complex, Fe2+‐PPA complex and Zn(OH)2.Keywords
This publication has 12 references indexed in Scilit:
- Synergistic, antagonistic and biocidal effects of amino (trimethylene phosphonic acid), polyacrylamide and Zn2+ on the inhibition of corrosion of mild steel in neutral aqueous environmentAnti-Corrosion Methods and Materials, 1997
- Adsorption of polyacrylamide on gold and iron from acidic aqueous solutionsElectrochimica Acta, 1991
- The electrochemical testing of polyacrylic acid and its derivatives as inhibitors of corrosionCorrosion Science, 1991
- The photoelectrochemistry of niobium doped α-Fe2O3Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1988
- Effect of 1-Hydroxyethylidene-1, 1-Diphosphonic Acid on the Corrosion of SS 41 Steel in 0.3% Sodium Chloride SolutionCorrosion, 1986
- AnnouncementNephron, 1986
- Preparation and characterization of iron oxide thin film electrodesSolar Energy Materials, 1983
- Solid solubility of Ge, Si, and Mg in Fe2O3 and photoelectric behaviorJournal of Solid State Chemistry, 1982
- Photoelectrochemical Characterization of the Passive Films on Iron and NickelJournal of the Electrochemical Society, 1981
- Semiconductor Properties of Iron Oxide ElectrodesJournal of the Electrochemical Society, 1979