Fumed Silica Powder

Fumed silica powder Fumed silica is a nano-scale white powder produced by the high-temperature hydrolysis of silicon halide in a hydrogen-oxygen flame. It is an amorphous silica product with a primary particle size of 7~40nm. The aggregate particle size is about 200-500 nanometers, and the specific surface area is 100-400m2/g. The purity of fumed silica…