Yttrium(III) fluoride is an inorganic

chemical compound A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element ...

with the chemical formula Y F₃. 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 Yttrium oxide, also known as yttria, is Y2 O3. It is an air-stable, white solid substance. The thermal conductivity of yttrium oxide is 27 W/(m·K). Uses Phosphors Yttria is widely used to make Eu:YVO4 and Eu:Y2O3 phosphors that give the red ...

yttrium hydroxide Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)3. Production Yttrium(III) hydroxide can be produced by reacting yttrium(III) nitrate and sodium hydroxide in aqueous solution:田俐，陈稳纯，陈� ...

with

hydrofluoric acid Hydrofluoric acid is a Solution (chemistry), solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly Corrosive substance, corrosive. It is used to make most fluorine-containing compounds; examples include th ...

. :Y(OH)₃ + 3HF → YF₃ + 3H₂O

Occurrence 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

Fluorides Metal halides Yttrium compounds {{inorganic-compound-stub