Use: Fumed silica all nano silicon dioxide, product purity can reach 99%, the particle size can be up to 10 ~ 20 nm, but the preparation technology is complex, expensive; Is divided into traditional of precipitated silica and special precipitation of precipitated silica white carbon black, the former refers to sulfuric acid, hydrochloric acid, CO2 and water glass as the basic raw material production of silica, the latter refers to the supergravity technology, sol-gel, chemical crystal method, secondary crystallization or revers

 Fumed silica

Eglish name: Fumed silica
Chemical structural formula: SiO2 

Physicochemical properties：
Fumed silica is also called the gas phase silica. White amorphous high dispersion of fine powder. With high dispersion performance. Soluble in caustic potash (sodium), and hydrofluoric acid. Insoluble in water and other acids. Absorb the moisture in air form the fine particle aggregation. The chemical stability. Resistance to high temperature. Don't burn. High electric insulation.
Technical specifications：
Item Specification
A150 A200
specific surface area 170±20 210±20
Content ≥99.8%
PH Value of Aqueous Suspension ≥4.0
loss on drying ≤1.0%
Use: Fumed silica all nano silicon dioxide, product purity can reach 99%, the particle size can be up to 10 ~ 20 nm, but the preparation technology is complex, expensive; Is divided into traditional of precipitated silica and special precipitation of precipitated silica white carbon black, the former refers to sulfuric acid, hydrochloric acid, CO2 and water glass as the basic raw material production of silica, the latter refers to the supergravity technology, sol-gel, chemical crystal method, secondary crystallization or revers

Liên hệ: Ms.Nga, 0934.868.708, Biên Hòa , Đồng Nai