Fused quartz sand:
With fused quartz blocks produced by our company as raw materials, according to different uses, fused quartz sands of various specifications are produced through classification, impurity removal, crushing and shaping, screening and magnetic separation. The product has very low thermal conductivity and excellent thermal stability, and the particle size distribution is stable. Mainly used as raw materials for crucible, technical ceramics, advanced refractory, precision casting and other industries.
Main uses:
Quartz crucible raw material
Casting material
Raw materials for refractory, ceramic and glass industries
Chemical composition:
SiO2 | > 99.9% | TiO2 | < 50ppm |
Fe2O3 | < 0.01% | MgO | < 50ppm |
Al2O3 | < 200ppm | CaO | < 50ppm |
Na2O | < 50ppm | K2O | < 50ppm |
EC | 0.9μs/cm | | |
Physical properties:
Appearance: Colorless transparent lump, granular or white powder
True weight: 2.21
Mohr hardness: 7.0
PH: 6