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EFFECT OF THE PROPORTIONS OF WATER AND DIMETHYFORMAMIDE IN SULFURIC-ACID-SOLUTIONS ON THE PASSIVATION OF IRON, NICKEL, AND CHROMIUMстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
- Авторы: CHAN GM, SAFONOV VA
- Журнал: Protection of Metals
- Том: 29
- Номер: 3
- Год издания: 1993
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 259
- Последняя страница: 263
- Аннотация: The potentiostatically determined potential region corresponding to the passive state in certain metals becomes smaller with an increase in the amount of DMFA in the solvent The potential at which chromium corrodes freely increases sharply in solutions with a predominance of DMFA, and the so-called cathodic current loop disappears. on its anodic I, E-curve. Data on the effect of potential and the composition of the solvent on the kinetics of the passivation of iron and disturbance of the passive state in the presence of Cl- ions is compared with data for berate buffer solutions in identical mixtures of H2O-DMFA. The comparison shows that the nature of the electrolyte plays an important role. A discussion is presented of the possibility of the participation of undissociated H2SO4 molecules, having oxidative properties, in the formation of the oxide layer on a passive Fe electrode.
- Добавил в систему: Сафонов Виктор Алексеевич