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Promethium(III) phosphate

This article will address Promethium(III) phosphate, a topic of great relevance and interest today. Promethium(III) phosphate is an issue that has generated debate and controversy in different areas, awakening the interest of experts, academics and the general public. Over the years, Promethium(III) phosphate has gained increasing importance due to its impact on society and people's daily lives. In this context, it is pertinent to analyze Promethium(III) phosphate in detail, exploring its different facets, implications and possible solutions. Likewise, we will seek to offer an objective and enriching perspective on Promethium(III) phosphate, in order to promote a constructive dialogue and foster greater understanding of this topic.

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promethium(III) phosphate
Identifiers
3D model (JSmol)
  • InChI=1S/H3O4P.Pm/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
    Key: LWSFGPKHSQZZME-UHFFFAOYSA-K
  • P(=O)().
Properties
PmPO4
Molar mass 241.89
Appearance pale yellow solid (hydrate)
garnet-red solid (anhydride)[1]
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).

Promethium(III) phosphate is an inorganic compound, a salt of promethium and phosphate, with the chemical formula of PmPO4. It is radioactive. Its hydrate can be obtained by precipitation of soluble promethium salt and diammonium hydrogen phosphate at pH 3~4 (or obtained by hydrothermal reaction [2]), and the hydrate can be obtained by burning at 960 °C to obtain the anhydrous form.[1] Its standard enthalpy of formation is −464 kcal/mol.[3]

References

  1. ^ a b F. Weigel; V. Scherer; H. Henschel (July 1965). "Unit Cells of the Monazite-Type Rare-Earth Phosphates". Journal of the American Ceramic Society. 48 (7): 383–384. doi:10.1111/j.1151-2916.1965.tb14768.x. ISSN 0002-7820. Retrieved 2021-01-16.
  2. ^ Nicolas Clavier; Nicolas Dacheux; Gilles Wallez; Michel Quarton (2006). "Hydrothermal Methods as a New Way of Actinide Phosphate Preparation". MRS Proceedings. 985 0985-NN04-08. doi:10.1557/PROC-985-0985-NN04-08. ISSN 0272-9172. Retrieved 2021-01-16.
  3. ^ Marinova, L. A.; Yaglov, V. N. (1976). "Thermodynamic characteristics of phosphates of lanthanides". Zhurnal Fizicheskoi Khimii. 50 (3): 802. ISSN 0044-4537.
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