alumina
Characteristic：
The white powder is prepared by the calcination of aluminium hydroxide at high temperature. The products have the characteristics of low impurities such as titanium, manganese, zinc, uranium, vanadium, zirconium, lithium, lead, boron and phosphorus. Pure alumina is a white amorphous powder with a melting point of 2050 DEG C and a boiling point of 2980 DEG C, insoluble in water.
Use:
Applicable to glass, ceramics, insulation, temperature instruments, refractories and other alumina products.
The white powder is prepared by the calcination of aluminium hydroxide at high temperature. The products have the characteristics of low impurities such as titanium, manganese, zinc, uranium, vanadium, zirconium, lithium, lead, boron and phosphorus. Pure alumina is a white amorphous powder with a melting point of 2050 DEG C and a boiling point of 2980 DEG C, insoluble in water.
Use:
Applicable to glass, ceramics, insulation, temperature instruments, refractories and other alumina products.
| Product brand | chemical composition，% | ||||
| AL2O3Not less than | Impurity content is not greater than | ||||
| Â | SiO2 | Fe2O3 | Na2O | Igloss | |
| AO-1 | 98.6 | 0.02 | 0.02 | 0.50 | 1.0 |
| AO-2 | 98.5 | 0.04 | 0.02 | 0.60 | 1.0 |
| AO-3 | 98.4 | 0.06 | 0.03 | 0.70 | 1.0 |
| Note: 1, Al2O3 content of 100%, minus the total amount of impurities listed in the table. 2. The chemical composition of the table is calculated by drying the dry base of 2H at 300 + 5 temperature. 3. The impurities in the table are treated by GB8170. | |||||