Aluminum fluoride anhydrous
Product name: Aluminum fluoride anhydrous
CAS No.: 7784-18-1
Molecular weight: 83.98
Appearance: Colorless or white crystalline
White triclinic crystal or powder, specific gravity:2.882, difficult to dissolve in water, acid and alkali, insoluble in most organic solvents, insoluble in hydrofluoric acid and liquid hydrogen fluoride; stable properties and not to react with liquid ammonia and concentrated sulfuric acid even being heated to fume, no change takes place when congruently melting with potassium hydroxide and not to be reduced by hydrogen, not to decompose but sublime when being heated. The sublimation temperature is 129°C; can be partly hydrolyze to hydrogen fluoride and aluminum oxide by vapour under the temperature from 300 to 400°C
1, Used as flux of nonferrous metal, can be used for making other aluminum fluoride.
2, 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.
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