Abstract
A new high-temperature (up to 140°C) inhibitor of steel corrosion in sulfuric acid, IFKhAN-92, that yields Z = 99% at a content of at least 1 wt % was developed. To enhance the protective effect of IFKhAN-92 at an elevated temperature, KI additions may be used. IFKhAN-92 was shown to be effective in hindering electrode reactions on steel. The high efficiency of this catalyst in H2SO4 solutions is most likely conditioned by the specific adsorption of IFKhAN-92 molecules on a metal surface.
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Original Russian Text © Ya.G. Avdeev, P.A. Belinskii, Yu.I. Kuznetsov, O.O. Zel’, published in Korroziya: Materialy, Zashchita, 2010, No. 1, pp. 27–33.
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Avdeev, Y.G., Belinskii, P.A., Kuznetsov, Y.I. et al. High-temperature inhibitor of steel corrosion in sulfuric acid solutions. Prot Met Phys Chem Surf 46, 782–787 (2010). https://doi.org/10.1134/S2070205110070087
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DOI: https://doi.org/10.1134/S2070205110070087