High Purity Alumina (HPA)

High Purity Alumina Series Products

High Purity Alumina (HPA)

99.995% Aluminum Oxide / Aluminium Oxide

With excellent physical and chemical properties, High Purity Alumina is widely used in high-end industries and cutting-edge science and technologies, such as surface coating of cathode materials for lithium battery,  engineering ceramics, crystal growth, etc.

Specification Details
Typical Properties Units 4N5G-40B 4N5G-D2 (milled) 4N5A-40B 4N5A-D5 (milled)
Crystal Structure
γ
γ
α
α
Average Particle Size
(by Bettersize Laser 9300SE)
D50, um
35-45
1-3
35-45
3-5
Loose Bulk Density
g/cm3
0.55-0.65
0.30-0.40
0.70-0.80
0.50-0.60
BET Surface Area
m2/g
45-55
60-70
≤5
≤5
Purity (Al2O3) ≥
%
99.995
99.995
99.995
99.995
Impurity ≤ (by ICP-OES)
Na
ppm
30
30
30
30
Ca
ppm
1
1
1
1
Mg
ppm
1
1
1
1
Fe
ppm
1
1
1
1
Si
ppm
17
17
17
17
Ti
ppm
1
1
1
1
Cu
ppm
1
1
1
1
Packing
(As per customer’s requests)
drum
25kg
20kg
25kg
25kg