Thorium oxyfluoride

Thorium oxyfluoride is an inorganic compound of thorium metal, fluorine, and oxygen with the chemical formula ThOF
₂.^[1][2][3]

Thorium oxyfluoride

Names
Other names thorium difluoride oxide, thorium fluoride oxide, thorium(IV) difluorideoxide
Identifiers
CAS Number	13597-30-3 Y
3D model (JSmol)	Interactive image
ChemSpider	21428670
EC Number	237-045-2
PubChem CID	25022211
CompTox Dashboard (EPA)	DTXSID1065554
InChI InChI=1S/2FH.O.Th/h2*1H;;/q;;;+2/p-2 Key: KXAYMKGDXBMOAK-UHFFFAOYSA-L
SMILES [Th](F)(F)=O
Properties
Chemical formula	ThOF 2
Molar mass	286.034 g/mol
Appearance	white powder
Solubility in water	insoluble
Related compounds
Related compounds	Lanthanum oxyfluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

• Thorium oxyfluoride can be prepared from partial hydrolysis of thorium tetrafluoride in moist air at elevated temperatures, about 1000 °C.^[4][5]

ThF₄ + H₂O → ThOF₂ + 2 HF

• Reaction of thorium tetrafluoride with thorium dioxide at 600 °C:

ThF₄ + ThO₂ → 2 ThOF₂

Physical properties

The compound forms white, insoluble amorphous powder.^[6]

Uses

The compound is used as a protective coating on reflective surfaces.^[7]