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1.High Purity Aluminum Oxide |
Formula : Al2O3
The melting point: 2050℃
99.995% series high purity aluminum oxide,which mainly applied in the LED synthetic sapphire crystal, PDP luminous powder raw material as well as some high performance material etc. As raw material of sapphire crystal, the powder can be processed to become granular(mm grade) or agglomerate by the customer’s request.
99.99% series high purity aluminum oxide which mainly used in new types of light source material, high-tension sodium lamp pipe material, glowing powder, fluorescent power of 3 primary colors, top quality abrasive materials, spraying and coating, catalyst for chemical industry, mading carbuncle and sapphire, special ceramics, special fireproof material and high-grade refractory materials, etc. the powder can be processed to become granular(mm grade) or agglomerate by the customer’s request.
The specification for powder as below: |
Appearance: high purity, fine granules, well-distributed particle size, odorless, white powder. r
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Code |
Specification |
Purity
(%)≥ |
Average
particle size
d50(μm) |
Surface
area(m2/g) |
Loose density ( g/cm3) |
impurity inclusion
(ppm)≤ |
k |
Na |
Ca |
Mg |
Fe |
Si |
Ti |
Cu |
4N5G |
γ-AL2O3 |
99.995 |
35-45 |
70-120 |
0.60-0.70 |
2 |
10 |
3 |
1 |
3 |
10 |
1 |
1 |
4N5A |
α-AL2O3 |
99.995 |
45-55 |
2-15 |
0.75-0.85 |
2 |
10 |
3 |
1 |
3 |
10 |
1 |
1 |
4NG |
γ- AL2O3 |
99.99 |
0.1-0.6 |
≥100 |
0.10-0.18 |
3 |
6 |
8 |
2 |
5 |
15 |
2 |
3 |
4NA |
α- AL2O3 |
99.99 |
0.4-0.8 |
≥5 |
0.25-0.32 |
3 |
5 |
7 |
2 |
5 |
15 |
2 |
3 |
We can produce the product by the client’s specific require.
Packing:
Inner packed by hermetic poly bag, outer packed by carton box or barrel. 25KG into one outer box or barrel |
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