Promethium(III) phosphate

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]

promethium(III) phosphate

Identifiers
CAS Number	14014-68-7 Y
3D model (JSmol)	Interactive image
PubChem CID	159478665 (charge error)
InChI InChI=1S/H3O4P.Pm/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3 Key: LWSFGPKHSQZZME-UHFFFAOYSA-K
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)[1]
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