Fused Silica Lumps Sand Grains Powder Flour With Sio299 9
May 05, 2021 The high purity quartz sand meets many needs of optical instruments such as prisms, lenses, and optic fibers. (HPI) powder include 99.9, 99.99 , and 99.999 . According to method.Also known as silica, Quartz, Quartz stone) is a texture hard, wear-resisting, stable chemical properties of silicate minerals, in nature exist in Quartz sandstone, quartzite and vein Quartz. 1, ordinary quartz sand SiO2 90-99 Fe2O3 0.06 or less - 0.02 or higher, refractoriness 1750 8451 , the exterior part of the larger particles, the surface has a yellow skin cyst. 3, high purity.