Name | Chemical Composition(%) | ||
SiO2 | 65~80% | Moisture | ≤0.5 |
Al2O3 | 10~18% | Solubility | Soluble in high concentration of hot alkali |
CaO | 2.0~5.0.% | PH | neutral |
Fe2O3 | 1.5~2.5% | Packing density | 800~1200Kg/M3 |
K2O | 1.5~4.0% | Weightlessness | 3.0±2 |
MgO | 1.0~2.0% | Softening point | 1100ºC~1300ºC |
Na2O | 2.0~4.0% | Melting point | 1200ºC~1550ºC |
TiO2 | 0.01~0.03% | Proportion | 1.0~2.5g/ml |