Synthesis and Study of Rubidium Hexauranate Rb 2 [(UO 2 ) 6 O 3 (OH) 8 ]·6H 2 O and Products of Its Heat Decomposition

O. V. Nipruk; N. G. Chernorukov; M. O. Bakhmetiev; E. V. Elipasheva; M. I. Lelet; K. A. Chaplieva

doi:10.1134/S1070363219080139

Synthesis and Study of Rubidium Hexauranate Rb₂[(UO₂)₆O₃(OH)₈]·6H₂O and Products of Its Heat Decomposition

Authors: Nipruk O.V.¹, Chernorukov N.G.¹, Bakhmetiev M.O.¹, Elipasheva E.V.¹, Lelet M.I.¹, Chaplieva K.A.¹
Affiliations:
1. N.I. Lobachevskii Nizhny Novgorod State University
Issue: Vol 89, No 8 (2019)
Pages: 1630-1636
Section: Article
URL: https://journals.rcsi.science/1070-3632/article/view/223031
DOI: https://doi.org/10.1134/S1070363219080139
ID: 223031

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Abstract

The interaction of hydrated uranium(VI) oxide UO₃·2.25H₂O (schoepite) with an aqueous solution of rubidium hydroxide in an autoclave at 100°C has yielded rubidium uranate Rb₂(UO₂)₆O₃(OH)₈·6H₂O. Composition and structure of the obtained compound have been determined by chemical analysis, IR spectroscopy, X-ray diffraction, and differential thermal analysis. The processes of its dehydration and thermal decomposition have been studied.