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High Purity Alumina / ISO9001:2008 / ISO14001:2004

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High Purity Alumina Powder

高纯氧化铝粉

Formula : Al2O3
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.

Specification details:

Code
Specification
Purity
(%)≥
Average
particle size
d50(μm)

Surfacearea

(m2/g)

Loose density ( g/cm3)
impurity inclusion
(ppm)≤
k
Na
Ca
Mg
Fe
Si
Ti
Cu
4N5G-40B
γ-AL2O3
99.995
30-40
70-100
0.60-0.70
1
25
1
1
1
15
1
1
4N5G-D3
γ-AL2O3
99.995
1-3
80-120
0.50-0.60
1
25
1
1
1
15
1
1
4N5A-40B
α- AL2O3
99.995
30-40
≤5
0.70-0.80
1
25
1
1
1
15
1
1
4N5A-D3
α- AL2O3
99.995
3-5
≤10
0.60-0.70
1
25
1
1
1
15
1
1
4NA
α- AL2O3
99.99
0.4-0.8*
5-20
0.25-0.32
50
10
2
2
15
15
1
2
Impurity analysis by ICP-OES,particle size by Malvern 2000.(*) analysis by Brookhaven(BIC). 
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. 25/20KG into one outer box or barrel

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