It is widely used in sapphire growth and sapphire ingot making,especially for LED market.
The product features with very high rigidity(≥9Mohs) and purity.
Such product can be produced by customers' specific requirements.
Grade
|
Purity
≥%
|
Dimension(mm)
|
Loose Density
(g/cm3)
|
Surface Area
(m2/g)
|
Impurities:(ppm≤)
|
|||||||
Na
|
K
|
Si
|
Fe
|
Ti
|
Ca
|
Cu
|
Mg
|
|||||
4N5A-LA
|
99.995
|
50(D)×18(H) |
3.1~3.5
|
6~12
|
3
|
2
|
10
|
1
|
1
|
3
|
1
|
1
|