Erbium fluoride is roseal crystal, which is rare earth metal fluoride. It is insoluble in water and dilute acid and hard to dissolve in hydrofluoric acid, but dissolve in sulfuric acid. Erbium(III) fluoride is stable at room temperature and pressure. ErF3 use erbium chloride or erbium nitrate as raw material. Erbium trifluoride is good low refractive index material, which get use in long wave infrared broadband antireflection.
Purity: Er/RE 99.5% 2N5
|CAS No.:13760-83-3||EINECS No.:237-356-3||Molecular Formula:ErF3||Molecular Weight:224.25|
|Density:7.814||Melting Point:1350℃||Boiling Point:2200℃||UN 3288 6.1/PG 3|
Erbium trifluoridie uses in optical coating, optical fiber dopant, laser crystal, monocrystal raw material, laser amplifer, catalytic addictives and so on. It could be doped in zinc sulfide (ErF3:ZnS), indium trioxide transparent conducting thin film(IEFO).
Erbium(III) fluoride film play important roles in space optics, photo-communication, spectrograph and other large optical systems. In far infrared region, rare earth fluorides as YF3, LaF3, CeF3, HfF4, NdF3 were reported with their optical constant, but rare for ErF3. ErF3 is heavy rare earth fluoride that belong to lanthanum series. In files of recent ten years, reports about erbium(III) fluoride’s infrared ray optical constant is few. Most of researches focus on infrared transmittance glass containing ErF3.