Promethium(III) fluoride

Promethium(III) fluoride or promethium trifluoride is a salt of promethium and fluorine with the formula PmF₃.

Promethium(III) fluoride

Crystal structure
Names
IUPAC name Promethium(III) fluoride
Other names Promethium trifluoride
Identifiers
CAS Number	13709-45-0
3D model (JSmol)	Interactive image
ChemSpider	103871343
PubChem CID	129681501
CompTox Dashboard (EPA)	DTXSID601337163
InChI InChI=1S/3FH.Pm/h3*1H;/q;;;+3/p-3 Key: GBTXURQYFJSURZ-UHFFFAOYSA-K
SMILES [F-].[F-].[F-].[Pm+3]
Properties
Chemical formula	PmF3
Molar mass	202 g/mol[1]
Appearance	pink solid[1]
Melting point	1338 °C[1]
Structure
Crystal structure	Rhombohedral, hR24
Space group	P3c1, No. 165[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Promethium(III) fluoride is sparingly soluble in water. It reacts with metallic lithium to yield lithium fluoride and metallic promethium:^[3]

PmF₃ + 3Li → Pm + 3LiF