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Aluminum Fluoride (AlF3) CAS No. 7784-18-1
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Last updated: 2018-04-15 03:30

Aluminum Fluoride (AlF3)  CAS No. 7784-18-1

Colorless or white crystals. Do not dissolve in water, insoluble in acids and bases. The nature is very stable and can be hydrolyzed under heating. Mainly used for aluminum smelting. It can be prepared by the action of aluminum trichloride, hydrofluoric acid and ammonia.


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1 / Physical properties

EINECS number: 232-051-1

Appearance and traits: colorless or white crystal.

Melting point (°C): 1040

Relative density (water = 1): 1.91

Boiling point (°C): 1537

Molecular formula: AlF3

Molecular weight: 83.98

Saturated vapor pressure (kPa): 0.13 (1238 ° C)

Solubility: hardly soluble in water, acid, alkali, insoluble in most organic solvents.


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1 / Chemical properties

It is co-heated with liquid ammonia or concentrated sulfuric acid, or has no reaction with potassium hydroxide. Not reduced by hydrogen, strong heat does not decompose but sublimate, the nature is very stable. Heating to 300-400 ° C can be partially decomposed by water vapor into hydrogen fluoride and aluminum oxide.


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1 / Function and Application

Mainly used in aluminum production to reduce the melting point and increase the conductivity of the electrolyte. Used as an inhibitor of by-fermentation in alcohol production. Also used as a fluxing agent and glaze component for ceramic glazes and enamel glazes. It can also be used as a flux for smelting non-ferrous metals.


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1/ for aluminium smelters


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1 / Preparation

Pure aluminum fluoride can be obtained by reacting aluminum trichloride with hydrofluoric acid or ammonia water to obtain ammonium hexafluoroaluminate, which is heated and decomposed.


Aluminum Fluoride (AlF3)  CAS No. 7784-18-1 / 1000 kg packing