Email this article Kinetics of Pu(VI) reduction with carbohydrazide in nitric acid
- Authors: Zavalina O.A.1, Dvoeglazov K.N.2, Pavlyukevich E.Y.2
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Affiliations:
- Mendeleev University of Chemical Technology of Russia
- Bochvar High-Tech Research Institute of Inorganic Materials
- Issue: Vol 59, No 4 (2017)
- Pages: 331-336
- Section: Article
- URL: https://journals.rcsi.science/1066-3622/article/view/224012
- DOI: https://doi.org/10.1134/S1066362217040014
- ID: 224012
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Abstract
The kinetics of the Pu(VI) reduction with carbohydrazide in nitric acid solutions was studied by spectrophotometry. The reaction rate increases with increasing carbohydrazide concentration and temperature and decreases with increasing HNO3 concentration. The reaction order with respect to Pu, carbohydrazide, and HNO3 is 1, 2.3, and–3, respectively. The activation energy of the reaction is 111 kJ mol–1. The final reduced Pu form is Pu(III), with Pu(V) being an intermediate.
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About the authors
O. A. Zavalina
Mendeleev University of Chemical Technology of Russia
Email: KNDvoeglazov@bochvar.ru
Russian Federation, Miusskaya pl. 9, Moscow, 125047
K. N. Dvoeglazov
Bochvar High-Tech Research Institute of Inorganic Materials
Author for correspondence.
Email: KNDvoeglazov@bochvar.ru
Russian Federation, ul. Rogova 5a, Moscow, 123060
E. Yu. Pavlyukevich
Bochvar High-Tech Research Institute of Inorganic Materials
Email: KNDvoeglazov@bochvar.ru
Russian Federation, ul. Rogova 5a, Moscow, 123060
