China 99% Aluminum Fluoride Alf3, Find details about China Aluminum Fluoride, Alf3 from 99% Aluminum Fluoride Alf3
Product Purity: 99.9%, 99.99%, other purity levels are available upon request
Formula: AlF3
Formula Weight: 83.98
Form: Lump or powder
Melting point: 1291°C subl.
Density: 2.882
Sensitivity: Hygroscopic
Packing: Packed in plastic woven bag of 25kg net each or as requirements.
Applications
1. Additive for aluminum metal production. Aluminium fluoride (AlF3) is widely used for the production
of aluminium by electrolysis as an additive . Used in combination with cryolite, AlF3 lowers the melting
point to below 1000 °C to form a molten salt that dissolves the aluminum oxide. This melt solution is
then electrolyzed to produce aluminum metal.
2. Optical materials and photonics applications.
Aluminium fluoride is used in combination with zirconium fluoride as an ingredient for the production of fluoroaluminate glasses. Like magnesium fluoride, aluminium fluoride is also used as a low-index optical thin film, particularly when far UV transparency is required.
Its deposition by physical vapor deposition (PVD), particularly by evaporation, is preferred using an aluminum fluoride target.
Index Name | AF-0 | AF-1 | AF-2 | AF-3 |
Fluorine(F)% min | 61 | 60 | 58 | 58 |
Sodium(Na)%max | 0.30 | 0.40 | 2.8 | 2.8 |
Aluminium(Al)%min | 31.5 | 31.0 | 29.0 | 29.0 |
L.O.I. At 550°C % max | 0.5 | 1.0 | 5.5 | 5.5 |
Silicon oxide(SiO2)%max | 0.10 | 0.30 | 0.30 | 0.35 |
Ferric oxide (Fe2O3)%max | 0.06 | 0.10 | 0.12 | 0.12 |
Sulphate(SO4)%max | 0.10 | 0.6 | 1.0 | 1.0 |
Pentoxide (P2O5)%max | 0.03 | 0.04 | 0.04 | 0.04 |
Bulk density (g/cm3)min | 1.5 | 1.3 | 0.7 | 0.7 |
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