Fumed Silica

Fumed Silica is also popular as white carbon black and pyrogenic silica. Fumed Silica is non toxic, non-polluting, high-tech inorganic fine white chemical. In high purity fumed silica the silica content is above 99.8%. The particle size varies from 7 to 40 nm. This new ultra-fine inorganic material become a irreplaceable material due to its small particle size, large specific surface area, strong surface absorption, surface energy, heat resistance property.

Production Process:
Fumed silica is made from flame pyrolysis of silicon tetrachloride vaporized in 1800C electric arc.

Available Grade:
PME-SS-150, PME-SS-200, PME-SS-300, PME-SS-380.
Special request for customization can be prepared.

Technical Details:
Parameters PME-SS-150 PME-SS-200 PME-SS-300 PME-SS-380
SiO2 99.8% 99.8% 99.8% 99.8%
pH Value 3.7-4.5 3.7-4.5 3.7-4.5 3.7-4.5
Specific Surface Area, m2/g 150 30 20 30 300 30 380 30
105oC Volatile Mass Fraction, wt% 1 1.5 2 2
Burning Loss Weight Mass fraction, wt% 1.5 2 2 2
45um Sieve residue, mg/kg 250 250 250 250
Appearance Density, g/l 50 50 50 50
Al2O3 mass fraction, mg/kg 400 400 400 400
TiO2 mass fraction, mg/kg 200 200 200 200
Fe2O3 mass fraction, mg/kg 30 30 30 30
Chloride mass fraction, mg/kg 250 250 250 250
Carbon mass fraction, mg/kg 0.2 0.2 0.2 0.2