【Physical properties】
Molecular formula: SiO2.x(H2O)
Structural formula:

Molecular weight: NA
Specific gravity (20/4°C)2.6g/cm3
Boiling point: >100 °C
Flash point (°C): NA
Appearance: white powdery or granular
【Sales index】≥93%
【Packing】20KG/bag
【Dangerous level】
【CAS#】10279-57-9