fused silica

Product Description

Qmin-SIL Series Fused Silica is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature ********0℃)to amorophos Silicon dioxide , then specially engineered ingots, granular and flour form designed for different usage. This product has a very low thermal conductivity and excellent thermal shock resistance. 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: Investment Casting , shell mould product Refractory & Technical Ceramic materials Electrical Insulators Others Chemical Composition: Ingot & Granule Powder SiO2: *9.9% *9.*5% AL2O3: *0ppm **0ppm Fe2O3: *0ppm *0ppm Na2O: *0ppm *0ppm K2O: *0ppm *0ppm CaO: *0ppm *0ppm MgO: *0ppm *0ppm Cristobalite 0.1%Max 0.1%Max Physical Properties: Appearance: Transparent Ingots, Granule or White Powder Specific Gravity: 2.*1 Hardness( Mohs): 7.0 PH: **7 Whiteness: *6Min. 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, **0***0mesh, ***0F, ***0F, ***5F, ***0F, ***0F.***0F, ****0F, Please contact us to inquiry for more about products particles size distribution, and chemical composition.