Stability of Neptunium(V) in Concentrated Acetic Acid Solutions
- Авторы: Gogolev A.V.1, Shilov V.P.1, Bessonov A.A.1, Fedoseev A.M.1
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Учреждения:
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Выпуск: Том 61, № 5 (2019)
- Страницы: 515-519
- Раздел: Article
- URL: https://ogarev-online.ru/1066-3622/article/view/225286
- DOI: https://doi.org/10.1134/S1066362219050011
- ID: 225286
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Аннотация
Np(V) acetate in glacial acetic acid and aqueous acetic acid solutions is resistant to disproportiona-tion and occurs in equilibrium with the NpO2(Ac)·H2O precipitate. Within the time of dehydration with excess acetic anhydride, Np(V) disproportionates. The inverse reproportionation process occurs after adding excess water to anhydrous acetic acid containing acetic anhydride, Np(IV), and Np(VI). Addition of HClO4 causes rapid disproportionation of Np(V) in anhydrous acetic acid and in concentrated acetic acid solutions. The spectra of suspensions containing Np(V) and potassium acetate in concentrated acetic acid contain absorption bands with maxima at 990 and 1020 nm, assigned to NpO2(Ac)32- anions and K2NpO2(Ac)3 particles, respectively.
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Об авторах
A. Gogolev
Frumkin Institute of Physical Chemistry and Electrochemistry
Автор, ответственный за переписку.
Email: gogolev@ipc.rssi.ru
Россия, Leninskii pr. 31, korp. 4, Moscow, 119071
V. Shilov
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: gogolev@ipc.rssi.ru
Россия, Leninskii pr. 31, korp. 4, Moscow, 119071
A. Bessonov
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: gogolev@ipc.rssi.ru
Россия, Leninskii pr. 31, korp. 4, Moscow, 119071
A. Fedoseev
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: gogolev@ipc.rssi.ru
Россия, Leninskii pr. 31, korp. 4, Moscow, 119071
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