High Purity Alumina Products
High Purity Alumina Series Products
High Purity Alumina Products
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High purity alumina products include high Purity alumina granules, high purity alumina pellet, alumina crackle crystal and alumina polycrystalline.
Our company produces 5N high purity alumina products with the advantages of high purity and density, which are mainly used for production large size sapphire crystals by Kyropoulos method, EFG method, TGT method and Czochralski method etc.
Specification Details
| Typical Properties | Units | 5N-PD | 5N-BD | 5N-ACD | 5N-PCD |
|---|---|---|---|---|---|
Crystal Structure |
α |
α |
α |
α | |
Appearance |
White Pellet |
White Granules |
Translucent Crackle |
Ivory-white Cylinder Crystal | |
Bulk Density |
g/cm3 |
3.40 |
3.50 |
3.90 |
3.20 |
Size |
mm |
Dia 50*H 20 |
Dia 2-4 |
By request |
By request |
Purity (Al2O3) ≥ |
% |
99.999 |
99.999 |
99.999 |
99.999 |
Impurity ≤ (by ICP-OES) | |||||
Na |
ppm |
2 |
2 |
1 |
2 |
Ca |
ppm |
2 |
2 |
0.5 |
1 |
Mg |
ppm |
1 |
1 |
0.5 |
0.5 |
Fe |
ppm |
1 |
1 |
0.5 |
1 |
Si |
ppm |
2 |
2 |
1 |
2 |
Ti |
ppm |
1 |
1 |
0.1 |
0.2 |
Cu |
ppm |
1 |
1 |
0.5 |
0.5 |
Packing (As per customer’s requests) |
drum |
25kg |
25kg |
25kg |
25kg |