Fumed Silica CAS#112945-52-5

Fumed Silica CAS#112945-52-5

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Excellent Thickening and Thixotropic Performance:Synthetic Amorphous Silica provides strong thickening effects and thixotropic behavior, making it ideal for applications requiring controlled viscosity.

Extremely Large External Surface Area:Its exceptionally high surface area enhances performance in formulations, improving stability, reinforcement, and absorption capabilities.

High-Purity Production via Vapor-Phase Hydrolysis:Manufactured through advanced vapor-phase hydrol-ysis of chlorosilanes in a hydrogen–oxygen flame, it ensures consistent quality and reliable material charact-eristics.

Free of Detectable Crystalline Silica: The product is collected in a dry state and contains no measurable crystalline silica, offering improved safety and compliance in sensitive applications.
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Product Description

Product Name:Fumed Silica
Synonyms:acticel;SILICA GEL 7G;SILICA GEL 8-20 MESH;SILICA GEL 12-28 MESH;SILICA GEL 100;SILICA GEL 30;SILICA GEL 60 G;WATER-IMPREGNATED SILICA GEL
CAS:112945-52-5
MF:O2Si
MW:60.08
EINECS:231-545-4
Product Categories:UVCBs-inorganic;metal oxide
Mol File:112945-52-5.mol

Fumed Silica Chemical Properties

Melting point>1600°C
density2.3 lb/cu.ft at 25 °C (bulk density)(lit.)
refractive indexn20/D1.46(lit.)
solubilityPractically 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).
formpowder
Specific Gravity2.2
Hydrolytic Sensitivity5: forms reversible hydrate
InChIInChI=1S/O2Si/c1-3-2
InChIKeyVYPSYNLAJGMNEJ-UHFFFAOYSA-N
SMILES[Si](=O)=O
CAS DataBase Reference112945-52-5(CAS DataBase Reference)
EPA Substance Registry SystemSilica, amorphous, fumed, cryst.-free (112945-52-5)


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