|
Molecular Formula：Al2O3
Molecular Weight：101.96
CAS No.：1344-28-1
EINECS No.：215-691-6
MDL：MFCD00003424
| Appearance |
White Powder |
| Crystal
|
γ |
| Purity，% |
99.99 |
| D50，μm ≤ |
5 |
| Loose Density，g/cm3 |
0.10～0.28 |
| Tap Density，g/cm3 |
0.20～0.35 |
| BET，m2/g |
100±20 |
| Impurity Element Contents, ≤ppm |
（Si），ppm≤ |
50 |
| |
（Fe），ppm≤ |
5 |
| |
（Na），ppm≤ |
10 |
| |
（Ca），ppm≤ |
5 |
| |
（K），ppm≤ |
5 |
Performance:gamma alumina is odourless, tasteless white powder. For unstable crystal, in 1000 ℃alumina into theta, 1180 ℃transformed into crystalline type stable alpha alumina. Primary diameter is 6 ~ 10 nm, is transparent or translucent nanoparticles. BET for 100 ~ 400 m2 / g, specific surface area is big, there is a lot of surface chemical activity.
Usage:packing, catalyst carrier, desiccant, adsorbent, purifying agent, tube wall coating, synthetic gems, etc.
Packing:packed in composite paper bag, lined with plastic film bag, net weight 10 kg/bag.
Storage:seal stored in a cool, dry, well ventilated place, avoid direct sunlight.
|
