Origin

China

1.Industrial Grade Alumina Oxide Powder:

No. Item Unit Specification  
   First grade Second grade 
1 Al 2 O 3 ( % ) ≥ 98.6 98.4 
2 SiO 2 ( % ) ≤ 0.02 0.04 
3 Fe 2 O 3 ( % ) ≤ 0.02 0.03 
4 Na 2 O ( % ) ≤ 0.5 0.6 
5 Loss of ignition % ≤ 1.0 1.0 
 
Application area:aluminum\corundum\ceramic\refractories and so on.

2\Ultrafine Grain Alumina Oxide with High Purity :

No. Item Unit  Specification  
1 Al 2 O 3 ( % ) ≥ 99.8 
2 SiO 2 ( % ) ≤ 0.005 
3 Fe 2 O 3 ( % ) ≤ .005 
4 Na 2 O ( % ) ≤ 0.09 
5 Mesh size <2um >85 
  D50um 0.6-0.8 
Application area:ceramic substrate\device with high hardness\high frequency ceramic in electronic industry and so on..

3. High Temperature Alumina Oxide ( Calcined Alumina Oxide):

No. Item Unit Secification  
   ccA ccB 
1 Al 2 O 3 ( % ) ≥ 99.5 99.5 
2 SiO 2 ( % ) ≤ 0.026 0.06 
3 Fe 2 O 3 ( % ) ≤ 0.04 0.03 
4 Na 2 O ( % ) ≤ 0.2 0.3 
5 Loss of ignition % ≤ 1.0 1.0 
6 α-Al2O3
(%) ≥ 94.0 93.0 
7 True specific gravity % ≥g/cm3 3.94 3.95 

Application field:raw materials for refractories with high alumina\electromagnetic device\polishing and grinding products.