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product

Aluminium fluoride
[Molecular Formula]:AlF3
[Molecular Weight]: 83.98
[Property]: White crystal or powder. Relative Density 2.882,25, hard to solve in water, acid and alkali solution, insoluble in most orgno solvents and insoluble in hydrofluoric acid and liquid hydrogen fluoride; it is quite stable. When heated, it does not decompose, but sublimate. Temperature of sublimation is 1,291oC. At 300-400oC, part of it will be hydrolyzed to hydrogen fluoride and aluminum chloride by vapor.
Its hydrate include AlF3 .1/2H2O, AlF3. H2O, AlF3 .3H2O, AlF3 .3/2H2O and AlF3 .9H2O; toxic!
[Specification]: Company standard

Index name

Index

Index name

Index

First grade

Second grade

First grade

Second grade

F

61 %min.

60 %min.

SiO2+Fe2O3

0.20 %max.

0.30 %max.

Al

30 %min.

30 %min.

Sulfate(SO4)

0.10 %max.

0.15 %max.

Na

0.4 %max.

0.5 %max.

P2O5

0.005 %max.

0.005 %max.

Water content(H2O)

7.0 %max.

7.5 %max.

Chemical ingredients are on dry base. Lump of over 4mm of diameter is acceptable in the product, and its weight cannot be bigger than 5%.
[Packing]: 25kg ,50kg per bag.

Ammonium fluoroaluminate
[Molecular formula]: (NH4)3AlF6
[Molecular Weight]: 195.09
[Property] : White or light grey powder, slightly soluble in water
[Product quality] : Company standard

Index name

First grade

Second

Content

98.0 %min.

97.0 %min.

Chloride (Cl)

0.15 %max.

0.20 %max.

Iron (Fe)

0.05 %max.

0.10 %max.

Silicate

0.25 %max.

0.50 %max.

Sulfate radical (SO4)

0.20 %max.

0.40 %max.
[Used]: Used as pesticides, also applied to pottery and porcelain, glass industry and aluminium soldering.
[Packing]: 25kg per bag.
 

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