Interaction between lanthanide cuprates and hydrochloric acid

The interaction between lanthanide cuprates Ln2CuO 4-δ (Ln = La-Gd) and hydrochloric acid is investigated. The effects of solution pH, temperature, and the nature of the rare-earth element ion on dissolution is studied. The formal order of the reaction in the acid is the same for all the substances under study and is 0.53 ± 0.05. The effective activation energy for the process is 40 ± 0.5 kJ/mol. A scheme of Ln2CuO4-δ interaction with HCl is proposed. © Pleiades Publishing, Ltd., 2011.

Авторы
Izotov A.D.1 , Nevskaya E.Yu. 2 , Egorova O.A. 2 , Gorichev I.G. 3
Журнал
Russian Journal of Inorganic Chemistry
Издательство
IAPC Nauka/Interperiodica
Номер выпуска
12
Язык
Английский
Страницы
1879-1882
Статус
Опубликовано
Ссылка
Внешняя ссылка
DOI
10.1134/S0036023611120345
Том
56
Год
2011
Организации
  • 1 Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russian Federation
  • 2 Russian University of Peoples' Friendship, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
  • 3 Moscow State Pedagogical University, Malaya Pirogovskaya ul. 1, Moscow, 119882, Russian Federation
Ключевые слова
Activation energy; Binary alloys; Chlorine compounds; Copper compounds; Gadolinium alloys; Hydrochloric acid; Lanthanum alloys; Rare earths; Cuprates; Effective activation energy; Solution pH; Rare earth elements
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