Complaint
The appearance is white crystalline powder or fine sand, uniform particle size, low water consumption, stable chemical properties, insoluble in acid and base, with good sintering activity. Different grades of high purity alumina are prepared by different processes, and can be used in LED sapphire crystal raw materials, trichromic phosphors, long lasting phosphors, high-pressure sodium lamp tubes, glass additives, electronic ceramics, catalyst carriers and other fields. Because of its better physical and chemical characteristics, customers can get satisfactory results.
| Product name | Al2O3 % | Si ppm | Fe ppm | Na ppm | Ca ppm | Mg ppm | Cu ppm | Cr ppm | Ti ppm | D50 μm |
| A-P-9999γ-40 | 99.995 | ≤20 | ≤3 | ≤35 | 3 | <1 | <1 | <2 | <1 | 40±5 |
| A-P-9999γ-2 | 99.995 | ≤20 | ≤3 | ≤35 | 3 | <1 | <1 | <2 | <1 | 2±1 |
| Product name | Al2O3 % | Major impurity conten | phase | D50 μm | Specific surface BET m2/g | Loose density g/cm³ | ||||
| Si ppm | Fe ppm | Na ppm | Ca ppm | Mg ppm | ||||||
| A-P-4N-30 | ≥99.99 | ≤10 | ≤10 | ≤3 | ≤1 | ≤1 | α | 30±5 | 4-6 | 0.7 |
| A-P-4N-04 | ≥99.99 | ≤10 | ≤10 | ≤3 | ≤1 | ≤1 | α | 0.4±0.1 | 5-7 | 0.8 |
