|
Chemical Composition and Particle Size Composition Standard to Refractory Raw Material of White Fused Alumina
Chemical Composition of Common White Fused Alumina
|
Chemical
Composition
|
Grit > 0.1mm
|
Typical Value
|
Fine
Powder ≤ 0.1mm
|
Typical Value
|
|
Al2O3%≥
|
99.2
|
99.5
|
99
|
99.3
|
|
SiO2%≤
|
0.1
|
0.03
|
0.15
|
0.08
|
|
Fe2O3%≤
|
0.1
|
0.03
|
0.1
|
0.06
|
|
K2O+Na2O≤
|
0.35
|
0.25
|
0.4
|
0.3
|
|
Apparent Porosity ≤
|
8
|
6
|
|
|
|
Common Bulk Density g/cm3≥
|
3.6
|
3.65
|
|
|
|
High Bulk Density g/cm3≥
|
3.68
|
3.72
|
|
|
|
True Density g/cm3≥
|
3.9
|
3.93
|
3.9
|
3.93
|
Chemical Composition Of Low Sodium, Micro Sodium White Corundum
|
Chemical Composition
|
Low
Sodium
|
Micro
Sodium
|
|
Guarantee Value
|
Typical
Value
|
Guarantee
Value
|
Typical
Value
|
|
Na2O≤
|
0.15
|
0.08
|
0.08
|
0.02
|
|
Al2O3%≥
|
99.4
|
99.7
|
99.6
|
99.8
|
|
SiO2%≤
|
0.1
|
0.05
|
0.1
|
0.05
|
|
Fe2O3%≤
|
0.05
|
0.02
|
0.05
|
0.02
|
Note: Various section sand and fine powder can be processed according to customer needs.
| 
