fused Silica Powder/flour

Description

Fused Silica Powder is a high-quality quartz smelting process through a unique form processing, Its crystal structure orderly transition from disorder to order.Products of high purity, color white, with a very low thermal expansion coefficient and good electromagnetic radiation, Reasonable controllable particle size distribution and excellent characteristics. 　　Fused Silica Powder mainly used for large-scale integrated circuits and semiconductor components of the package, High-grade electrical insulation, silicone rubber industries. Chemical composition Physical Water extract SiO2(%) *9.9 Combustion (%) 0.*5 PH 7 Al2O3(%) 0.2 Density 2.2 Cl -ï&frac*4;ˆppmï&frac*4;‰ 1 Fe2O3(%) 0.**8 Moshi hardness 6 Na+ï&frac*4;ˆppmï&frac*4;‰ 1 Ti2O(%) 0.*1 EC/cm 5