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Fumed Silica

Physical and Chemical Properties

Molecular Formula: SiO2
CAS No.: 112945-52-5

Vapour Pressure: 32hPa (25℃)
Relative Density (water=1): 0.22g/cm3



Technological Index

Item Index
Appearance White Powder
Surface Area (m2/g)SD-150 SD-200 SD-380
150~185190~230370~430
45μm Sieve Residue(mg/kg)    ≤ 250
PH Value in Aqueous Dispersion 3.7~4.5
Volatilization Loss (105℃) /%  ≤ 3
Ignition Loss /%                       ≤ 2.5
Silicon Dioxide /%                    ≥ 99.8


Application and Usage

It is white, loose, amorphous, non-toxic and non-odorous nonmetal oxide. Due to the nanometer effect, it has excellent properties, such as reinforce, bodying, thixotropy, insulation and others. Therefore, it can be widely used in the rubber, plastic, paint coating, adhesive, seals and other polymer industrial area.


Package, Storage and Handling

N.W 10KG/bag.
Keep in a cool, dry, well-ventilated place. Store away from incompatible substances such as oxidizing agents.

Zhejiang Sindeal New Material Technology Co., Ltd.   备案号:浙ICP备2021038770号-1

Add.: Room 921, Building 5, Zhongda Yintai City, Gongshu District, Hangzhou City, Zhejiang Province, China

Email:info@sindeal.com.cn