Fused Silica Grain

الوصف

Fused Silica is the selection of high-purity quartz at very high temperatures from melting, with a high silica content, and low thermal conductivity. High insulation characteristics, chemical stability.　　 Grade A: SiO2: *9.9%min Grade B: SiO2: *9.8%min Particle size: A: ***0mm, **0.5mm, 0.**0.2mm, 0.**0.1mm, 0.**1mm B: *4**0mesh, **0**0mesh, **0**0mesh, **0**0mesh, **0***0mesh, ***0F, ***0F, ***5F, ***0F, ***0F Or in accordance with customer's request. PH：5.8 　　 Specs：0.**5MM Component：SiO2: *9.*9%**9.*0%; Fe2O3: 7ppM max Li2O: 1.0 ppM max; Al2O3: *0 ppM***0ppM; K2O:9 ppM max; Na2O: *1ppM max; Uses : Refractories, Precision Casting, semiconductor packing, special coatings, ceramics, molds, and other industries. Chemical composition Physical Water extract SiO2(%) *9.9 Combustion (%) 0.*5 PH 7 Al2O3(%) 0.2 Density 2.2 Cl -（ppm） 1 Fe2O3(%) 0.**8 Moshi hardness 6 Na+（ppm） 1 Ti2O(%) 0.*1 EC/cm 5