Fused Silica Lump

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.　　
　　PH：5.8
　　Uses : Refractories, Precision Casting, semiconductor packing, special coatings, ceramics, molds, and other industries.
　　Specs：3-30MM　3-50MM
　　Component：SiO2: 99.99%-99.90%; Fe2O3: 6ppM max; Li2O: 1.0ppM max;
　　Al2O3:30ppM-100ppM; K2O:9ppM max; Na2O: 11 ppM max;

Jiangsu Donghai Jingshengyuan Silica Co., Ltd. (Jiangsu Donghai JSY silica CO, LTD) is located in the famous silica and crystal hometown of China and the Chinese quartz crystal production base city - Donghai County. Jiangsu Donghai JSY silica CO, LTD was founded in 1999, is one of the earliest andthe largest professional manufacturers of micro natural silica ,fused silica ,silicon carbide,graphite, productsin Donghai County, , the company also has boththe dry, and wet professionalproduction lines, with an annual output of silica powder, quartz sand, quartz powder (silica sand) more than 30,000Ton. Our products can be widely used in electronics, electrical appliances, electrical, chemical, ceramics, paint and coating, silicone rubber, medicine and other fields industry. And our micro silica products is used more than 20provinces across the whole china, meanwhile, part of the silica and quartzproducts are exported to Japan, South Korea, Southeast Asia, the United States, Europe, Middle East and other countries and regions. With strong technical ability, advanced testing equipment, perfect pre-sales, after-sales service. Donghai JSY silica CO., LTD can provide and supply different customers with crystalline silica powder, fused silica powder, cristobalite micro silica, active silica powder(surface treated silica), supper fine silica powder 5 series, ordinary silica powder, electronic grade silica powder, electrical grade silica powder in 10 major categories, nearly 90 different specifications of silicon powder, quartz powder(sand) products. Learning from advanced foreign technology, with constantly quality improvement and enhancement, Donghai JSY silica CO., LTD become the first certified and authorized in the silica powder industry by DNV (Det Norske Veritas) and ISO9001: 2000 international quality management system. And thanks to micro silica good product quality, product diversification, good service, scientific management, the company