Influence of 1-hydroxyethelydenediphosphonic acid on the kinetics of magnetite dissolution

The influence of pH value, solution composition, and complexone concentration of (1-hydroxyetheledenediphophonic acid (HL)) on magnetite (Fe3O4) dissolution is studied. A peak in the rate of oxide dissolution is shown to occur at pH 1.5, with its amplitude increasing with the acid concentration. It is demonstrated that the effect of a complexone can be explained based on the structure of the electrical double layer at the oxide-electrolyte interface and on the adsorption characteristics of the H4L- complexone ions and protonated Fe(II) anionic complexes. Various mechanisms of iron oxide dissolution in the presence of HL are discussed.

Авторы
Kishkina N.A.1 , Gorichev I.G. 1 , Zaitsev B.E. 2 , Izotov A.D.3 , Dukhanin V.S.1
Редакторы
-
Издательство
-
Номер выпуска
5
Язык
Английский
Страницы
739-747
Статус
Опубликовано
Подразделение
-
DOI
-
Номер
-
Том
73
Год
1999
Организации
  • 1 Moscow Stt. Open Pedagogical Univ., Moscow, 117198, Russian Federation
  • 2 Russ. Univ. of People's Friendship, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
  • 3 Kurnakov Inst. Gen. Inorg. Chem., Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/561/