Physical property:
| Mohs Hardness | Bulk Density | Specific Gravity | Volume Density | Melting Point | Maximum service temperature |
| 9.0 | 1.75-1.95g/cm3 | 3.95g/cm3 | 3.6g/cm3 | 2250°C | 1900°C |
Chemical composition:
| Al2O3 | Fe2O3 | Na2O | SiO2 | CaO | K2O |
| ≥99.5% | ≤0.08% | ≤0.30% | ≤0.10% | ≤0.03% | ≤0.03% |
* Usage:
1. The process of blasting TV screens
2. The cutting of silicon wafer
3. The process of cleaning and blasting tooth model
4. Precision sand casting
5. High refractory and other ceramic additives
6. to make sandpaper & sandcloth
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