Name:

Fumed silica

Appearance:

Fluffy white powder.

Technical Data of Fumed Silica

Item Indexes

The nitrogen adsorption specific surface area/（m2/g） Typical values±30

Loss on ignition/%          ≤ 2.5

Silica content/%            ≥ 99.8

Suspension PH 3.7~4.5

Al2O3 content/（mg/kg）     ≤ 400

TiO2 content/（mg/kg）     ≤ 200

Ti2O3 content/（mg/kg）     ≤ 30

Carbon content/%            ≤ 0.2

Chloride content（mg/kg）      ≤ 250

105℃ volatiles/%           ≤ 3

Tap density /（g/dm3） 30~60

45μm screenings/（mg/kg）   ≤ 250

Applications of Fumed Silica

Due to its small particle size, the specific surface area is big, therefore the surface adsorption power, surface energy, high chemical purity

Package Storage and Transportation

This product's hygroscopicity is strong, with more than three layers of kraft paper valve bag packaging, using vacuum packaging machines, automatic packaging.

Description of Fumed Silica

Fumed silica, molecular formula is SiO2. White fluffy powder, porous, non-toxic, tasteless and pollution-free, high-temperature resistant. At the same time, it has the chemical inertness and special thixotropy can significantly improve the tensile strength, tear-resistance, and wear resistance of rubber products, rubber improved strength increased by tens of times. It can be used as rheological and thixotropic control for liquid systems, adhesives, polymers, etc., as an anti-sink, thickening, anti-sagging additive, reinforcement for HCR and RTV-2K silicone rubber, used to regulate free flow, and as an anti-caking agent to improve powder properties, etc. ZHONGTIAN EAST FLUORINE SILICON MATERIAL CO.,LTD. provides fumed silica for sale. As fumed silica manufacturers and fumed silica suppliers, we can offer a reasonable fumed silica price. Customers can buy fumed silica for their different needs.