Promethium iodate

Promethium iodate

Identifiers
CAS Number	anhydrous: 14325-83-8 checkY monohydrate: 58890-24-7 checkY
3D model (JSmol)	anhydrous: Interactive image monohydrate: Interactive image
ECHA InfoCard
E number
CompTox Dashboard (EPA)	anhydrous: {{#property:P3117}}
InChI InChI=1S/3HIO3.Pm/c3*2-1(3)4;/h3*(H,2,3,4);/q;;;+3/p-3 Key: OTVRQOHWWGIUPQ-UHFFFAOYSA-K
SMILES anhydrous: [Pm+3].O=I(=O)[O-].O=I(=O)[O-].O=I(=O)[O-] monohydrate: [Pm+3].O=I(=O)[O-].O=I(=O)[O-].O=I(=O)[O-].O
Properties
Chemical formula	Pm(IO3)3
Molar mass	669.71
Density	5.00 g·cm−3 (hydrate)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Promethium iodate is an inorganic compound with the chemical formula Pm(IO₃)₃. It can be obtained by reacting with potassium iodate, ammonium iodate or a slight excess of iodic acid and Pm³⁺ solution and precipitating it. Its hydrate, Pm(IO₃)₃·H₂O, crystallizes in the P2₁ space group, with unit cell parameters a=10.172±13, b=6.700±20, c=7.289±24 Å, β=113.1±0.2°.