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aluminium potassium fluoride

Aluminum Fluoride (ALF3)

    Aluminum fluoride, alias aluminum trifluoride, is an inorganic compound with chemical formula AIF3, which is prepared by the reaction of aluminum hydroxide or metallic aluminum with hydrogen fluoride, or by the reaction of aluminum trichloride with hydrofluoric acid and ammonia water. 

    Colorless or white crystals. Insoluble in water, acid and alkali. It can be hydrolyzed when heated. 

    This type of non-metallic minerals has excellent thermal stability, chemical stability and electrical insulation.

Aluminum Fluoride Types

  • Single crystal aluminum fluoride: a crystal with high purity and high refractive index.

  • Polycrystalline aluminum fluoride: It is composed of several single crystals of aluminum fluoride, with uniform optical properties and excellent coating adhesion.

  • Doping aluminum fluoride: By adding different doping elements (such as yttrium, ytterbium, thulium, etc.) to the aluminum fluoride crystal, its optical properties are changed.

  • Surface microstructure aluminum fluoride: micron-sized aluminum fluoride crystals are formed on the surface.



Aluminum Fluoride Specification


CAS

7784-18-1

molecular formula

AlF3

molecular weight

83.98

melting point

250°C

boiling point

1291 °C

density

3.1 g/mL at 25 °C(lit.)

flash(ing) point

1250°C form powder




Aluminum Fluoride Application

  • In metallurgical industry, aluminum fluoride, as a type of non-metallic minerals, is a high-quality flux and deoxidizer. It can reduce the temperature of metal melting point and help metal smelting. At the same time, it can also react with metal oxides to form a protective alumina film to prevent further oxidation of metals. For example, aluminum fluoride-magnesium composites have high thermal conductivity and corrosion resistance, and can be used to manufacture high-performance radiators.

  • In the chemical industry, aluminum fluoride is an important catalyst, flame retardant and desiccant. It can promote many chemical reactions, such as alkylation, acylation and esterification. In addition, aluminum fluoride can also be used to manufacture high-performance insulating materials and composite materials.

  • In ceramic industry, aluminum fluoride is used as glaze and spraying material. It can react with silicate glass to form a glass phase with low refractive index, thus improving the hardness, wear resistance and corrosion resistance of ceramic products. Such as bearings, cutters, seals, etc.

  • In the petroleum industry, aluminum fluoride is used as a drilling and oil recovery agent. It can effectively reduce the surface tension of drilling fluid and oil production fluid, and improve the fluidity, which is beneficial to drilling and oil production.


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