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Aluminum Fluoride AlF3
Aluminum fluoride
Molecular Formula: AlF3 • 3H2O
C A S: 7784-18-1
Physical properties: colorless triclinic crystals. White powder or orthorhombic great six-sided crystals. Density 3.00g / cm3. Melting point 1040 ℃. Boiling Point (sublimation) 1272 ℃. There are several hydrates exist; slightly soluble in water, soluble in hot water. Difficult to dissolve in acid and alkali solution, insoluble in most organic solvents. It can be heated to 300-400 ℃ steam partial decomposition of hydrogen fluoride and alumina. There are three hydrates, namely monohydrate, trihydrate and nine water thereof.
Uses: optical glass material. Coating materials for the aluminum industry in lowering the melting temperature of the electrolyte and improve the conductivity, is used as a flux of non-ferrous metals, ceramic glazes and enamel component flux and glaze, as well as oil production by-fermentation The inhibitor. Alcohol production for the play deputy fermentation inhibitors.
Specification:
|
Categories |
Industrial Grade |
Steel Grade |
Ceramic Grade |
Fluorescence grade |
Optical Grade |
High Purity |
Customized |
|
|
Content not less than (%) |
93.0 |
96.0 |
98.0 |
99.0 |
99.8 |
99.99 |
|
|
|
Impurity content not more than |
Na |
|
|
0.05 |
0.01 |
0.002 |
|
|
|
K |
|
|
0.05 |
0.01 |
0.002 |
|
|
|
|
Ca |
|
|
|
|
|
|
|
|
|
Mg |
0.5 |
0.1 |
0.05 |
0.05 |
0.02 |
|
|
|
|
Si |
1% |
0.5 |
0.1 |
0.05 |
0.01 |
0.002 |
|
|
|
SO4 |
0.5 |
0.1 |
0.05 |
0.03 |
0.01 |
0.005 |
|
|
|
Fe |
0.1 |
0.05 |
0.05 |
0.001 |
0.0005 |
0.0001 |
|
|
|
Cl |
0.1 |
0.1 |
0.05 |
0.05 |
0.01 |
0.001 |
|
|
|
Al |
0.1 |
0.1 |
0.05 |
0.02 |
0.002 |
0.001 |
|
|
|
Cu |
0.05 |
0.02 |
0.002 |
0.001 |
0.0005 |
0.0002 |
|
|
|
Heavy metals (Pb) |
0.05 |
0.02 |
0.002 |
0.001 |
0.0005 |
0.0002 |
|
|