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Rubidium uranium trisulphate: A new chemical assay standard for uranium

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Abstract

Rubidium uranium trisulphate [Rb2U(SO4)3] was prepared as a high purity compound of uranium in different lots of 250 g each. The compound was characterised and evaluated by chemical, atomic spectrosopic, infrared, X-ray diffraction and thermogravimetric methods for its use as a chemical assay standard for uranium. The compound is stoichiometric, pure, homogeneous and stable in atmospheric conditions. The solubility studies showed that Rb2U(SO4)3 is easily soluble in mineral acids. An experiment based on Randomised Block Design was carried out to assign a value to the uranium content in Rb2U(SO4)3 from the statistically analysed chemical data. The assigned value of [34.167±0.042]% to the uranium content is in close agreement with the theoretical value of 34.152%. Based on these studies, Rb2U(SO4)3 is recommended as a chemical assay standard for uranium.

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Authors and Affiliations

  1. Fuel Chemistry Division, Bhabha Atomic Research Centre, 400 085, Mumbai, India

    K. D. Singh Mudher, K. Krishnan, R. R. Khandekar, M. B. Yadav, N. C. Jayadevan & D. D. Sood

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  1. K. D. Singh Mudher
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  2. K. Krishnan
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  3. R. R. Khandekar
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  4. M. B. Yadav
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  5. N. C. Jayadevan
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  6. D. D. Sood
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Singh Mudher, K.D., Krishnan, K., Khandekar, R.R. et al. Rubidium uranium trisulphate: A new chemical assay standard for uranium. J Radioanal Nucl Chem 240, 183–191 (1999). https://doi.org/10.1007/BF02349152

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  • DOI: https://doi.org/10.1007/BF02349152

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