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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References
Volk, V.I., Marchenko, V.I., Dvoeglazov, K.N., et al., Radiochemistry, 2012, vol. 54, no. 2, pp. 143–148.
Dvoeglazov, K., Alekseenko, V., Marchenko, V., et al., Abstracts of Papers, 17th Radiochemical Conf., Marianske Lazne (Czech Republic), May 11–16, 2014, p. 201.
Shadrin, A.Yu., Dvoeglazov, K.N., Glushenkov, A.E., et al., Vopr. Radiats. Bezopasn., 2013, no. 4, pp. 45–54.
Dvoeglazov, K.N., Zavalina, O.A., and Pavlyukevich, E.Yu., Abstracts of Papers, VIII Vserossiiskaya konferentsiya po radiokhimii “Radiokhimiya- 2015” (VIII All-Russia Conf. on Radiochemistry “Radiochemistry-2015”), Zheleznogorsk, Krasnoyarsk krai, Sept. 28–Oct. 2, 2015, p. 53.
Volk, V.I., Veselov, S.N., Dvoeglazov, K.N., et al., RF Patent 2 449 393, Byull. Izobret., 2012, no. 12.
Milyukova, M.S., Gusev, N.I., Sentyurin, I.G., and Sklyarenko, I.S., Analiticheskaya khimiyia plutoniya (Analytical Chemistry of Plutonium), Moscow: Nauka, 1965.
Rovnyi, S.I., Tarakanov, V.M., and Nedelina, L.V., Atlas spektrov valentnykh sostoyanii plutoniya, kharakternykh dlya rastvorov pererabotki otrabotavshego yadernogo topliva na komplekse RT-1: Spravochnoe posobie (Atlas of Spectra of Plutonium Valence States Characteristic of Solutions from Spent Nuclear Fuel Reprocessing at the RT-1 Complex: Handbook), Ozersk: Voprosy Radiatsionnoi Bezopasnosti, 2004, p. 9.
Marchenko, V.I., Alekseenko, V.N., and Dvoeglazov, K.N., Radiochemistry, 2015, vol. 57, no. 4, pp. 366–377.
Koltunov, V., J. Nucl. Sci. Technol., 2000, suppl. 3, pp. 347–350.
Koltunov, V.S., Pastushchak, V.G., Mezhov, E.A., and Koltunov, G.V., Radiochemistry, 2004, vol. 46, no. 2, pp. 125–130.
Koltunov, V.S., Kinetika reaktsii aktinoidov (Kinetics of Actinide Reactions), Moscow: Atomizdat, 1974.
Dutta, R.L. and Sarkar, A.K., J. Inorg. Nucl. Chem., 1981, vol. 43, no. 10, pp. 2557–2599.
Sonawane, S.H., Gorge, G.M., Polke, B.G., et al., Defence Sci. J., 2006, vol. 56, no. 3, pp. 391–398.
Kalinichenko, I.I., Ivanov, M.G., and Titov, N.M., Zh. Neorg. Khim., 1984, vol. 29, no. 4, pp. 926–928.
Ivanov, N.M. and Kalinichenko, I.I., Zh. Neorg. Khim., 1981, vol. 26, no. 2, pp. 411–413.
Leshok, D.Y., Alekseenko, V.N., Gavrilov, P.M., et al., Radiochim. Acta, 2015, vol. 103, no. 7, pp. 477–486.
Koltunov, V.S. and Zhuravleva, G.I., Radiokhimiya, 1973, vol. 15, pp. 74–77.
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Original Russian Text © O.A. Zavalina, K.N. Dvoeglazov, E.Yu. Pavlyukevich, 2017, published in Radiokhimiya, 2017, Vol. 59, No. 4, pp. 289–293.
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Zavalina, O.A., Dvoeglazov, K.N. & Pavlyukevich, E.Y. Kinetics of Pu(VI) reduction with carbohydrazide in nitric acid. Radiochemistry 59, 331–336 (2017). https://doi.org/10.1134/S1066362217040014
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DOI: https://doi.org/10.1134/S1066362217040014