Abstract
Adsorption, protective and passivating properties of several sodium higher carboxylates on a copper surface was studied in a borate buffer solution at pH 7.4. Sodium oleyl sarcosinate is shown to possess the best protective and adsorptive properties. It is established that at E = 0.0 V, the adsorption of oleyl sarcosinate is poly-layered, giving the best protection of copper upon its anodic dissolution. In a moist atmosphere with periodic condensation of moisture on the samples, it exceeded that of 1,2,3-benzotriazole.
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Original Russian Text © M.O. Agafonkina, Yu.I. Kuznetzov, N.P. Andreeva, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 6, pp. 1013–1019.
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Agafonkina, M.O., Kuznetzov, Y.I. & Andreeva, N.P. Inhibitor properties of carboxylates and their adsorption on copper from aqueous solutions. Russ. J. Phys. Chem. 89, 1070–1076 (2015). https://doi.org/10.1134/S0036024415060023
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DOI: https://doi.org/10.1134/S0036024415060023