Product Description

Crystalline Silica Powder is used donghai high-grade natural quartz, Domestic use of advanced processing technology from iron production, Its white color, pure quality, low impurity content, High voltage transmission system is epoxy casting quality electronic packaging and packing. Crystalline silica Powder with use can be divided into different sectors Electrical Silica Powder、Electronic Silica Powder and General Packing Silica Powder. Chemical composition Physical Water extract SiO2(%) *9.7 Combustion (%) 0.*5 PH 7 Al2O3(%) 0.2 Density 2.*5 Cl -（ppm） 5 Fe2O3(%) 0.*3 Moshi hardness 7 Na+（ppm） 5 MgO(%) 0.**2 EC/cm *0 Na2O(%) 0.*1