fused silica block
Fused Silica is made of high purity Quartz Sand by electrically fused (fusing temperature up to 1800-2000℃) in Electric Arc Furnaces , then the Crystalline Quartz Sand transformed into Amorphous Silicon Dioxide (transparent , inserted few fogs ) .
Main Applications
Electrical Insulators & EMC (Epoxy Molding Compound)
Precision Casting & shell casting
Refractory , Ceramic & glass materials
Chemical Compositions
| SiO2 | Fe2O3 | Al2O3 | Na2O | TiO2 | MgO | CaO | K2O | EC |
|---|---|---|---|---|---|---|---|---|
| > 99.9% | < 0.01% | < 200ppm | < 50ppm | < 50ppm | < 50ppm | < 50ppm | < 50ppm | 0.9μs/cm |
Physical Properties :
Appearance: Transparent cullets , Grains or White Powder
Specific Gravity: 2.2
Hardness( Mohs): 7.0
PH: 5-7
Particle Size Available :
0-100mm, 5-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0mm, 1-0.5mm, 0.5-0.2mm,0.2-0.1mm, 0.5-0.1mm,
-4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh, -50+100mesh,-100+200mesh , -120F,-200F, -325F, -600F.