Fumed Silica( Hydrophobic )

Silica, fumed

MF：O2Si

MW：60.08

CAS：112945-52-5

melting point:>1600°C

density:2.3 lb/cu.ft at 25 °C (bulk density)(lit.)

Refractive index:n20/D 1.46(lit.)

solubility:Practically insoluble in organic solvents, water, and acids, except hydrofluoric acid; soluble in hot solutions of alkali hydroxide. Forms a colloidal dispersion with water. For Aerosil, solubility in water is 150 mg/L at 258℃ (pH 7).

fumed silica is widely used in various coatings, plastics, adhesives, and sealants, and as a reinforcing agent in rubber;

silica can be used as raw material for making water glass, refractory, optical glass, optical fiber, quartz glass instruments, as well as ultrasonic components, adsorbents, etc.

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