Product Information - Fused Silica

Information

Fused Silica has an extremely low thermal expansion and a low thermal conductivity, therefore it is an excellent refractory raw material for the glass industry and for steel continues casting refractories. Fused Silica is produced by fusing natural high purity quartz sand.
Origin (local): China
Production process: Fusion in electric arc furnaces
Packing: Big bags
Bags
Special properties: Low thermal expansion
Low thermal conductivity
High purity

Specification

Chemical analysis A grade:
SiO2 Min. 99.8%
AL2O3 Max. 0.02%
Fe2O3 Max. 0.01%
Na2O Max. 0.005%
TiO2 Max. 0.002%
K2O Max. 0.002%
CaO Max. 0.002%
MgO Max. 0.002%
Crystallinity (Quartz+Tridymite+Cristoblite) Max. 0.1%
Chemical analysis C Grade:
SiO2 Min. 99.0%
AL2O3 Max. 0.08%
Fe2O3 Max. 0.06%
Na2O Max. 0.02%
TiO2 Max. 0.02%
K2O Max. 0.02%
CaO Max. 0.06%
MgO Max. 0.02%
Crystallinity (Quartz+Tridymite+Cristoblite) Max. 0.1%
Specific weight:
2.21 g/cm3

Contact

Possehl Erzkontor GmbH & Co. KG
Beckergrube 38-52
23552 L├╝beck

Phone:  +49 - (0) 451 - 148 0
Fax:  +49 - (0) 451 - 148 355