Aluminum Fluoride evaporation materials
Aluminum Fluoride (AlF3) Evaporation Material
Aluminum Fluoride Evaporation Materials- AlF3 Granule
Purity--- 99.99% or International standards type
Shape---Granules, Irregular pieces, Solid substance, Custom-Made
Dimension---1-3mm, 4-10mm, Custom-Made
Evaporation temperature---Vapour pressure at 817 ℃ 1 Pa, at 882 ℃ 10 Pa
Solubility---Insoluble in water
Properties of thin film---
Evaporation with electron beam gun (Mo, Ta)
Application--- UV coating
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Aluminium Fluoride Base Information - AlF3
Aluminium fluoride (AlF3) is an inorganic compound used primarily in the production of aluminium. This colorless solid can be prepared synthetically but also occurs in nature.
Production and occurrence
H2SiF6 + Al2O3 → 2 AlF3 + SiO2 + H2O
Aluminium fluoride trihydrate is found in nature as the rare mineral rosenbergite.
Like most gaseous metal trifluorides, AlF3 adopts a planar structure upon evaporation.
It is also used to inhibit fermentation.
Like magnesium fluoride it used as a low-index optical thin film, particularly when far UV transparency is required. Its deposition by physical vapor deposition, particularly by evaporation, is favorable.
Other names: Aluminium(III) fluoride, Aluminum trifluoride
Appearance：white, crystalline solid odorless
Density：3.1 g/cm3 (anhydrous), 2.1 g/cm3 (monohydrate), 1.914 g/cm3 (trihydrate)
Melting point： 1,291 °C (2,356 °F; 1,564 K) (anhydrous) (sublimes)
Crystal structure：Rhombohedral, hR24