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Synthesis and Characteristics of Double Np(VI) Potassium and Pu(VI) Potassium Silicates K[(NpO2)(SiO3OH)]·H2O and K[(PuO2)(SiO3OH)]·H2O

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Abstract

K[(NpO2)(SiO3OH)]·H2O (I) and K[(PuO2)(SiO3OH)]·H2O (II) were prepared by hydrothermal synthesis at 120°C, and their IR and near-IR spectra were measured. The unit cell parameters of the compounds were determined from powder X-ray patterns [a = 7.068(1), b = 7.064(2), c = 6.640(1) Å. β = 106.68(1)°, V = 317.6 Å3 (I); a = 7.102(1), b = 7.100(2), c = 6.637(1) Å, β = 107.62(1)°, V = 318.9 Å3 (II)]. These compounds are isostructural with potassium boltwoodite K[(UO2)(SiO3OH)]·H2O.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Moscow, Russia

    G. B. Andreev, A. M. Fedoseev, V. P. Perminov & N. A. Budantseva

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  1. G. B. Andreev
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  2. A. M. Fedoseev
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  3. V. P. Perminov
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  4. N. A. Budantseva
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Andreev, G.B., Fedoseev, A.M., Perminov, V.P. et al. Synthesis and Characteristics of Double Np(VI) Potassium and Pu(VI) Potassium Silicates K[(NpO2)(SiO3OH)]·H2O and K[(PuO2)(SiO3OH)]·H2O. Radiochemistry 45, 488–490 (2003). https://doi.org/10.1023/A:1026264026512

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  • DOI: https://doi.org/10.1023/A:1026264026512

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