активируется Кварцевое порошок Кварцевое Зерно

Fused Silica Fused Silica Grain Fused silica powder fused silica flour Fused Silica is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature 1800-2000°C)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.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. all the fused silica powder or fused silica grain can be dived into A and B class Grade A: SiO2: 99.9%min Grade B: SiO2: 99.8%min Particle size: A: 5-50mm, 0-0.5mm, 0.5-0.2mm, 0.2-0.1mm, 0.5-1mm B: -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh, -50+100mesh, -120F, -200F, -325F, -400F, -600F Or in accordance with customer's request.PH5.8 Specs0.1-5MM ComponentSiO2: 99.99%-99.90%; Fe2O3: 7ppM max Li2O: 1.0 ppM max; Al2O3: 30 ppM-100ppM; K2O:9 ppM max; Na2O: 11ppM max; Uses : Refractories, Precision Casting, semiconductor packing, special coatings, ceramics, molds, and other industries.