Email this article Thermal Stability and Products of Decomposition of Hydroxylaminate Uranyl Complexes
- Authors: Beirakhov A.G.1, Rotov A.V.1, Efimov N.N.1, Il’in E.G.1, Gekhman A.E.1
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Affiliations:
- Kurnakov Institute of General and Inorganic Chemistry
- Issue: Vol 64, No 2 (2019)
- Pages: 185-189
- Section: Coordination Compounds
- URL: https://journal-vniispk.ru/0036-0236/article/view/169237
- DOI: https://doi.org/10.1134/S0036023619020025
- ID: 169237
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Abstract
The thermal behavior of hydroxylaminate uranyl complexes [UO2(NH2O)2(H2O)2] ‧ H2O, [UO2(NH2O)2], and [UO2(i-C3H7NHO)2(H2O)2] ‧ 2H2O has been studied. The complexes decompose at a low temperature (<200°C) resulting in nanoscale powders of uranium dioxide. The composition of solid decomposition products for each complex has been determined by powder X-ray diffraction. For the complex with isopropylhydroxylamine, the composition of the gaseous decomposition products has been determined. Schemes of redox reactions, which can take place during the thermal decomposition of the complexes, are proposed. It has been suggested that the redox reactions are dependent on the substituents at the nitrogen atom of the hydroxylaminate ligands.
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About the authors
A. G. Beirakhov
Kurnakov Institute of General and Inorganic Chemistry
Email: eg_ilin@mail.ru
Russian Federation, Moscow, 119991
A. V. Rotov
Kurnakov Institute of General and Inorganic Chemistry
Email: eg_ilin@mail.ru
Russian Federation, Moscow, 119991
N. N. Efimov
Kurnakov Institute of General and Inorganic Chemistry
Email: eg_ilin@mail.ru
Russian Federation, Moscow, 119991
E. G. Il’in
Kurnakov Institute of General and Inorganic Chemistry
Author for correspondence.
Email: eg_ilin@mail.ru
Russian Federation, Moscow, 119991
A. E. Gekhman
Kurnakov Institute of General and Inorganic Chemistry
Email: eg_ilin@mail.ru
Russian Federation, Moscow, 119991
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