Yttrium(III) fluoride

Yttrium(III) fluoride

Names
Other names yttrium trifluoride
Identifiers
CAS Number	13709-49-4
ChemSpider	75502
Jmol interactive 3D	Image
PubChem	83679
InChI InChI=1S/3FH.Y/h3*1H;/q;;;+3/p-3 Key: RBORBHYCVONNJH-UHFFFAOYSA-K InChI=1/3FH.Y/h3*1H;/q;;;+3/p-3 Key: RBORBHYCVONNJH-DFZHHIFOAP
SMILES F[Y](F)F
Properties
Chemical formula	YF3
Molar mass	145.90 g mol^−1
Appearance	white powder
Density	4.01 g cm^−3
Melting point	1,387 °C (2,529 °F; 1,660 K)
Boiling point	2,230 °C (4,050 °F; 2,500 K)
Solubility in water	insoluble
Solubility in acid	soluble
Refractive index (nD)	1.51 (500 nm)
Structure
Crystal structure	Orthorhombic, oP16, SpaceGroup = Pnma, No. 62
Hazards
Flash point	Non-flammable
Related compounds
Other anions	Yttrium(III) chloride Yttrium(III) bromide Yttrium(III) iodide
Other cations	Scandium(III) fluoride Lanthanum(III) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Yttrium(III) fluoride is an inorganic chemical compound with the chemical formula YF₃. It is not known naturally in 'pure' form. The fluoride minerals containing essential yttrium include tveitite-(Y) (Y,Na)₆Ca₆Ca₆F₄₂ and gagarinite-(Y) NaCaY(F,Cl)₆. Sometimes mineral fluorite contains admixtures of yttrium.

Synthesis

YF₃ can be produced by reacting fluorine with yttria or yttrium hydroxide with hydrofluoric acid.

Y(OH)₃ + 3HF → YF₃ + 3H₂O

Uses

Yttrium(III) fluoride can be used for the production of metallic yttrium, thin films, glasses and ceramics.

Hazards

Conditions/substances to avoid are: acids, active metals and moisture.

References