Formula YF3 Density 4.01 g/cm³ Appearance white powder | Molar mass 145.9 g/mol Refractive index (nD) 1.51 (500 nm) | |
 | ||
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.
Contents
Synthesis
YF3 can be produced by reacting fluorine with yttria or yttrium hydroxide with hydrofluoric acid.
Y(OH)3 + 3HF → YF3 + 3H2OOccurrence and uses
It occurs as the mineral waimirite-(Y).
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
Yttrium(III) fluoride Wikipedia(Text) CC BY-SA