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promethium(III) phosphate
Identifiers
CAS Number	14014-68-7 ;
3D model (JSmol)	Interactive image;
PubChem CID	159478665 (charge error);
	SMILES [O-]P(=O)([O-])[O-].[Pm+3];
Properties
Chemical formula	PmPO4
Molar mass	241.89
Appearance	pale yellow solid (hydrate); garnet-red solid (anhydride)
Solubility in water	insoluble
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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

^ ^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.
^ Nicolas Clavier; Nicolas Dacheux; Gilles Wallez; Michel Quarton (2006). "Hydrothermal Methods as a New Way of Actinide Phosphate Preparation". MRS Proceedings. 985. doi:10.1557/PROC-985-0985-NN04-08. ISSN 0272-9172. Retrieved 2021-01-16.
^ 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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[Weigel-1] 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. 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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