Specific Alumina

High Purity Alumina Series Products

High Purity Superfine Alumina

High Purity Superfine Alumina has the characteristics of high melting point, high hardness, good electrical insulation, wear resistance and high corrosion resistance. It is widely used in sapphire, lithium ion battery diaphragm coating, new energy materials, precision polishing, electronic ceramics, catalyst carrier, wear-resistant coating and other fields.

Specification Details
Typical Properties Units AGBM-C AJM-C ALH-C
Crystal Structure
α
α
α
Average Particle Size
(by MasterSizer2000)
D50, um
0.5-0.8
0.8-1.0
0.5-1.0
Loose Bulk Density
g/cm3
0.5-0.7
0.6-0.8
0.6-0.8
BET Surface Area
m2/g
6-8
6-8
8-12
Purity (Al2O3) ≥
%
≥99.92
≥99.95
≥99.995
α-Conversion Rate
%
>85
>90
>90
MOI
%
<0.5
<0.5
<0.5
Impurity ≤ (by ICP-OES)
Na
ppm
≤600
≤350
≤30
Ca
ppm
≤50
≤50
≤3
Mg
ppm
≤10
≤10
≤3
Fe
ppm
≤40
≤50
≤3
Si
ppm
≤50
≤50
≤20
Packing
(As per customer’s requests)
drum
25kg
25kg
25kg