Nanometer silicon dioxide (Nm-SiO2) is a new kind of inorganic materials, because of its extra small size. It has many special characteristics, such as big surface volume, quanta tunnel, and so on.

Silica fume, also known as microsilica, is a byproduct of production of silicon and ferrosilicon alloys. Because of its extreme fineness and high silica content, silica fume is a highly effective pozzolanic material. HS No.28112200 China Origin Density:550-700kg/ m3(Densified Silica Fume) Packing:900kg/Jumbo bag or 25kg small plastic woven bags(18mts for 20FCL,25mts for 40FCL). Shipment:We have warehouses in Guangzhou, Shanghai, Tianjin port,there are 1000mts are available in stock any time.So that we can load goods into container once receipt the payment. Payment:T/T or L/C at sight. You can contact us if you want to order this product.

Silicon Dioxide Silicon dioxide is used as acidity regulator. Due to its free flowing properties it is used in instant Soups, Tea, Coffee etc.