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Fumed Silica

It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has obvious properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hydrofluoric acid and concentrated bases.
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  • SN200
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Introduction: It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has obvious properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hydrofluoric acid and concentrated bases.

Specification:

Items

          SN-200

Appearance

White solid colloidal micro-particle

Specific surface area        m2/g

         200±20

PH value

3.7~4.5

Loss on drying at 105       %

         2.0 max.

Loss on ignition at 1000     %

         2.0 max.

Sieve residue                %

           0.04 max.

Tamped density              g/l

           40 – 60

SiO2 content                %

           99.8 min.

Carbon content              %

           0.15 max.

Chloride content             %

           0.02 max.

Al2O3                      %

           0.03 max.

TiO2                       %

           0.02 max.

Fe2O3                     %

           0.003 max.

Application:

It is used widely in silicon rubber, construction sealant, coating, electron and electric, aerospace, medicine and medical material, resin processing, printing ink, pesticide and other industries.

SN-200: used widely in sealing ring, sealing gasket, petroleum pipeline, insulator, tablet

powdered preparation, artificial viscera, infusion tube, latex nipple and high quality oil ink.

Packing:

10 kg multi-paper bags.

Storage and transportation:

Kept in ventilated and dry place and prevented from humidity, moisture,pressure and shaking during transportation.


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