fused silica, fused quartz, silica powder

Product Description

　　Special Features: Near zero thermal expansion coefficient Excellent thermal shock resistance Pure(high SiO2 content, low Iron, Potassium & Sodium Oxide) Consistent Chemistry Statistically controlled particle size distribution 　　Main Applications: EMC (Epoxy Molding Compound) Investment Casting , shell mould product Refractory & Ceramic materials Paint Others 　　Chemical Composition: Item Ingot & Granule Powder SiO2 *9.9% *9.8% AL2O3 *0ppm **0ppm Fe2O3 *0ppm *0ppm Na2O *0ppm *0ppm K2O *0ppm *0ppm 　　Physical Properties: Appearance: Transparent Ingots, Granule or White Powder Specific Gravity: 2.*1 Hardness( Mohs): 7.0 PH: **7 Whiteness: *5Min. 　　Size Available: (Ingot, Granules and powder): 　　(1) ***0mm, ****0mm, **5mm, **3mm, **1mm, **0.5mm, **0.2mm, **0.5mm, 0.**0.2mm, 　　　　0.**0.1mm, 0.**0.1mm, 0.**1mm. 　　(2) *4**0mesh, **0**0mesh, **0**0mesh, **0**0mesh, **0***0mesh, ***0F, 　　　　***0F, ***5F, ***0F, ***0F.