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Aluminium Fluoride

Aluminium Fluoride

Aluminium Fluoride
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  • Aluminium Trifluoride
  • 28261200
  • AlF3
  • White Crystalline Powder
  • 7784-18-1
  • Aluminium Trifluoride
  • 800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
    800 @ 25 kg Plastic Woven Bags
    20 MT / 20'FCL
Grade Origin Download
China
 TDS MSDS

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Brief Overview

 

Aluminum fluoride (AlF3) is an inorganic compound used primarily in the production of aluminum. This colorless solid can be prepared synthetically but also occurs in nature. This substance is odorless white crystalline power, and stable under ordinary conditions. 

 

Manufacturing process:

 

There are three main processes to manufacture aluminium fluoride:

 

  1. By heating ammonium hexafluoro aluminate to red heat in a stream of nitrogen

 

  1. Obtained by the action of fluorine or hydrogen fluoride on the metal at high temperatures, or by fusing cryolite or sodium fluoride with aluminium sulfate.

 

  1. Action of hydrogen fluoride gas on alumina trihydrate; reaction of hydrogen fluoride on a suspension of aluminium trihydrate, followed by calcining the hydrate formed; reaction of fluosilicic acid on aluminium hydrate.

Metal Industry

 

Aluminum fluoride is an important additive for the production of aluminum by electrolysis. Together with cryolite lowers the melting point to below 1000 °C and increases the conductivity of the solution. It is into this molten salt that aluminum oxide is dissolved and then electrolyzed to give bulk Al metal.

 

Ceramics Industry

 

It is used as an ingredient for the production of ceramics.

 

Other Applications

 

Together with zirconium fluoride, aluminum fluoride is an ingredient to produce fluoroaluminate glasses. Furthermore, it is used to inhibit fermentation and serves as a sputtering target for preparation of low index films. Fluoride compounds are used in coatings for the UV to middle-IR regions. They provide the lowest refractive indices and therefore are essential components of anti-reflective coatings.

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