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Efficiency of a Cadmium Complex of Nitril-trismethylenephosphonic Acid As a Corrosion Inhibitor of Low-Carbon Steel in Neutral Iodide-Containing Aqueous Media and Features of Formation of Passivating Films under These Conditionsстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 мая 2025 г.
- Авторы: Kazantseva I.S., Chausov F.F., Vorob'ev V.L., Lomova N.V., Isupov N.Yu
- Журнал: Russian Journal of Physical Chemistry A
- Том: 99
- Номер: 4
- Год издания: 2025
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 676
- Последняя страница: 683
- DOI: 10.1134/S0036024425700293
- Аннотация: A potentiodynamic study is performed of the effect the cadmium complex of nitrile-trismethylenephosphonic acid Na-4[Cd(H2O)N(CH2PO3)(3)]center dot 7H(2)O has on the corrosion-electrochemical behavior of low-carbon steel in neutral iodide-containing aqueous media. The composition and structure of passivating films, spatial localization of inhibitor interaction with iron ions, and accompanying processes and products of these interactions, are studied via X-ray photoelectron spectroscopy with layer-by-layer etching. With 1.4 mmol/dm(3) of I- ions, Na-4[Cd(H2O)N(CH2PO3)(3)]center dot 7H(2)O at a concentration of 0.05-0.5 g/dm(3) reduces the current density of anodic dissolution of metal. It stimulates corrosion at concentrations of 1.0 g/dm(3) and above. The optimum concentration of inhibitor is 0.2-0.5 g/dm(3).
- Добавил в систему: Чаусов Фёдор Фёдорович