99.8%-99.9% Sio2 3n High Purity Silica Powder Quartz Powder for Refractory Materials & Optical Glass Raw Material

99.8%-99.9% Sio2 3n High Purity Silica Powder Quartz Powder for Refractory Materials & Optical Glass Raw Material. 99.9% high purity, electronic grade amorphous nano silica powder transparent colloid. Nano size particle, large specific surface area with excellent activity. Low impurity formula, stable batch to batch consistency. Good dispersibility, effectively avoid particle agglomeration. Versatile for electronics, coatings, rubber and composite material applications.