Al2O3 | Fe2O3 | Na2O | SiO2 | CaO | K2O |
≥99.5% | ≤0.08% | ≤0.30% | ≤0.10% | ≤0.03% | ≤0.03% |
Mohs Hardness 莫氏硬度 | Bulk Density 堆积密度 | Specific Gravity 比重 | Volume Density 体积密度 | Melting Point 熔点 | Maximum service temperature 使用温度 |
9.0 | 1.75-1.95g/cm3 | 3.95g/cm3 | 3.6g/cm3 | 2250°C | 1900°C |