High purity γ - alumina
Features: white crystal powder or fine sand appearance, uniform particle size, low water storage, stable chemical properties, good crystal phase stability, insoluble in acid and alkali, with good sintering activity.
Application: it can be used in LED sapphire crystal raw material, trichromatic phosphor, long afterglow phosphor, high pressure sodium lamp, glass additive, electronic ceramics, catalyst carrier and other fields.
Specification
| Item |
Grade |
Purity |
Surface |
Size average (μm ) D50 |
Loose density (g/cm3) |
Impurity (ppm) ≤ |
| (%)≥ |
area |
| Al2O3 |
(m2/g) |
| γ-Al2O3 |
|
|
|
|
|
Na |
Fe |
Si |
K |
Ti |
|
| 4N5G-40B |
99.995 |
80 |
40 |
0.65 |
30 |
1 |
17 |
1 |
1 |
FAQ
Q: Are you factory?
A: Yes, we are factory.
Q: How is your quality?
A: We have top grade production equipment and precision measuring instruments and we also have engineers and technicians carry out quality control.
Q: Can you supply free samples?
A: 1kgs free sample is available, but freight charges will be at your account, The charges will be return to you or deduct from your order in the future.
Q: What about the payment?
100% T/T in advance, 30% T/T in advance, the balance 70% against the B/L copy, Irrevocable L/C at sight
Q: The MOQ is?
A: MOQ is usually 1 ton, special products can be coordinuted with each other.
Q: Can I visit your factory?
A: Yes, we welcome you to visit our factory at anytime
Q: How about your delivery time?
A: Usually the shipment is within 15 days after confirming receipt of your payment, some products maybe need longer time.
Audited Supplier 
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