Al2O3 | 17-23% |
SiO2 | >70% |
Fe2O3 | <1.0% |
CaO | <1.5% |
MgO | <0.5% |
K2O + Na2O | <3.5% |
Other | <1% |
Size (mm) | Specific surface area (m2/m3) | Void fraction (%) | Numbers per (m3) | Bulk density (kg/m3) | Packing factor (l/ft) |
25 | 253 | 73 | 53000 | 600 | 340 |
38 | 164 | 75 | 13000 | 580 | 190 |
50 | 115 | 77.4 | 6300 | 580 | 166 |
76 | 92 | 75.5 | 1900 | 530 | 127 |