China Industry Grade Synthetic Cryolite Aluminum Fluoride Alf3 with Best Price, Find details about China Aluminum Fluoride, Pharma from Industry Grade Synthetic Cryolite Aluminum Fluoride Alf3 with Best Price
Product Name: Aluminum fluoride
Alias: Alf3, Sodium Fluoroaluminate,Synthetic Cryolite
CAS No.:159096-52-3
MF:Na3AlF6
MW:209.94
EINECS:239-148-8
Mol File:159096-52-3mol
Aluminum fluoride Descrption
Aluminum fluoride is a white needle crystal powder. SP.GR.2.882-3.13g/cm3,sublimation temp.1272.It's slightly soluble in water and greatly soluble in HF Liquid.The chemical property for the high density aluminium fluoride is very steady, but that contains certain crystal water will be decomposed into Al2O3 at high temprature with HF being released.
Aluminum fluoride 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.