Aluminum fluoride is used by aluminum producers to lower the melting point of electrolytes in the smelting process and increase production efficiency. It is also used as a flux ingredient for the removal of magnesium in the refining of aluminum scrap. When magnesium-bearing aluminum alloys are melted, fluoride reacts with the magnesium and permits removal of this element. This enables remelters to produce aluminum alloys substantially free of magnesium.
| Parameters |
Specification |
Analysis Results |
| Alf3 |
94% min |
94.4% |
| SiO2 |
0.20% max |
0.01% |
| NA |
0.50% max |
0.20% |
| Fe2O3 |
0.03% max |
0.015% |
| SO4 |
0.15% max |
0.05% |
| P2O5 |
0.02% max |
0.002% |
| LOI at 550 deg. C |
0.5% max |
0.40% |
| Moisture |
0.25% max |
0.20% |
| -325 Mesh |
10.0% max |
9.0% |
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