Calcined Alumina

Calcined Alumina
 

Product description:

Calcined Alumina
It is white powder, good flowability, performance stability, hardly soluble in acid and alkali, excellent sintering property. It used as high quality material for aluminous refractory, sintering coroundum and electric ceramics.
Chemical composition
Alumina (α -AL2O3) / Calcined
Appearance
White powder
Package
25kg woven bag, 1000kg big bag
Characteristics
It is white powder, good flowability, performance stability, hardly soluble in acid and alkali, excellent sintering property.
Application
luminous refractory, sintering coroundum and electric ceramics.
No
Item
Unit
Index
SS-1
SS-2
1
AL2O3
%≥
99.5
99.5
2
SiO2
%≤
0.026
0.06
3
Fe2O3
%≤
0.04
0.03
4
Na2O
%≤
0.20
0.30
5
Loss in burning
%
1.0
1.0
6
α -AL2O3
%≥
94.0
93.0
7
Proportion
%≥ g/ cm3
3.94
3.95