sell Silica Fume

Tthe existing form: Amorphous thin powder The typical color: Gray white in nature, the color is become darker with the density accretion) The BET Fineness: 15-27 m2/g The bulk density: 150-700 kg/m3 The activity target: 85%-125% The moisture: 1-3% The main chemical properties of microsilica are SiO2, its content is about 85-95%, its main elements include Fe2O3, Al2O3, CaO, K2O, Na2O, MgO, C and so on. pls Feel Free To Contact Us,you Must Have A Good Market With Our Competitive Price And Quality !