Email this article Kinetics of the formation of precipitates and the physicochemical properties of technetium-99 and rhenium sulfides according to small-angle X-ray scattering and ultramicrocentrifugation data
- Authors: German K.E.1,2, Obruchnikova Y.A.1,2, Safonov A.V.1,2, Tregubova V.E.1,2, Afanas’ev A.V.1,2, Kopytin A.V.3, Kryzhovets O.S.2,3, Poineau F.4,5, Abkhalimov E.V.1, Shiryaev A.A.1
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Affiliations:
- Frumkin Institute of Physical Chemistry and Electrochemistry
- REAVIZ Medical University, Moscow Branch
- Kurnakov Institute of General and Inorganic Chemistry
- University of Nevada, Las Vegas
- SUBATECH
- Issue: Vol 61, No 11 (2016)
- Pages: 1445-1450
- Section: Physical Methods of Investigation
- URL: https://journals.rcsi.science/0036-0236/article/view/166908
- DOI: https://doi.org/10.1134/S0036023616110061
- ID: 166908
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Abstract
The interaction of technetium and rhenium with sulfides in aqueous solutions was studied by small-angle X-ray scattering and ultramicrocentrifugation. It was shown that, although the stoichiometry of technetium sulfide corresponds to the formula Tc2S7–x, the oxidation state of technetium in it is +4 and the excess sulfur is bound into a disulfide group so that its formula can correctly be written as [Tc3(µ3-S)(µ2-S2)3(S2)(3n–n)/n)]n. The determination of the solubility of technetium sulfide is complicated by its tendency to form colloids, which was the reason why the above methods were chosen to find features of its formation and describe its solubility in solutions.
About the authors
K. E. German
Frumkin Institute of Physical Chemistry and Electrochemistry; REAVIZ Medical University, Moscow Branch
Author for correspondence.
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071; Moscow, 107564
Ya. A. Obruchnikova
Frumkin Institute of Physical Chemistry and Electrochemistry; REAVIZ Medical University, Moscow Branch
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071; Moscow, 107564
A. V. Safonov
Frumkin Institute of Physical Chemistry and Electrochemistry; REAVIZ Medical University, Moscow Branch
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071; Moscow, 107564
V. E. Tregubova
Frumkin Institute of Physical Chemistry and Electrochemistry; REAVIZ Medical University, Moscow Branch
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071; Moscow, 107564
A. V. Afanas’ev
Frumkin Institute of Physical Chemistry and Electrochemistry; REAVIZ Medical University, Moscow Branch
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071; Moscow, 107564
A. V. Kopytin
Kurnakov Institute of General and Inorganic Chemistry
Email: guerman_k@mail.ru
Russian Federation, Moscow, 119991
O. S. Kryzhovets
REAVIZ Medical University, Moscow Branch; Kurnakov Institute of General and Inorganic Chemistry
Email: guerman_k@mail.ru
Russian Federation, Moscow, 107564; Moscow, 119991
F. Poineau
University of Nevada, Las Vegas; SUBATECH
Email: guerman_k@mail.ru
United States, Las Vegas, NV, 89154; Nantes cedex, 44307
E. V. Abkhalimov
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071
A. A. Shiryaev
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: guerman_k@mail.ru
Russian Federation, Moscow, 199071
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