Xinxiang Jinsheng New Material Co.,Ltd. Produces high purity alumina with the advanced method-ammonium
alum carbonate-thermal decomposition process.The product
is characterized by high activity,lower a -formation temperature,narrow
grain distribution,fine original crystal(≤0.50µm),high
purity,spherical shape and without sulphide and so on .It
can be used widely in transparent ceramics,fluorescence
powder,biological cermics,machanical cermics,man-maded gem
and so on .It is a biggest producing base of high purity
alumina in our country.
The physical and chemical specification of high purity
superfine alumina
| Item |
Code No. |
| a-Al2O3 |
a-Al2O3 |
r-Al2O3 |
| Al2O3 % ≥ |
99.99 |
99.99 |
99.99 |
| K ppm ≤ |
5 |
5 |
10 |
| Na ppm ≤ |
5 |
5 |
5 |
| Si ppm ≤ |
20 |
20 |
20 |
| Fe ppm ≤ |
10 |
10 |
10 |
| Cu ppm ≤ |
5 |
5 |
5 |
| Mg ppm ≤ |
5 |
5 |
5 |
| α-Al2O3 ≥
% |
95 |
95 |
/ |
| Specific area m2/g |
4-10 |
3-5 |
130 |
| Bulk density g/cm3 |
0.45 |
0.28-0.32 |
0.25 |
| Ave.Grain Dia D50(µ) |
4-8 |
0.5-2 |
0.5-3 |
Packing: polypropylene plastic braided
bag (a-Al2O3 20kg, r-Al2O3
10kg)
|
