COMMERCIAL
112945-52-5

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SILICON DIOXIDE, amorphous

Product Code: SIS6960.0

Cas No: 112945-52-5

R&D quantities:

2 kg
$110.00
500 g
$41.00
Silica Nanoparticles

A range of silica structures from 20 nm to 1 micron have been modified with silanes to reduce hydroxyl content allowing improved dispersion. Other versions have monolayers with isolated secondary amine functionality, providing controlled interactions with resins. Systems that maintain low levels of hydroxyls have improved electrical properties. Introduction of low levels of secondary amines impart improved mechanical properties particularly in high humidity environments.

Silicon dioxide
  • Fumed silica
  • Amorphous
  • Ultimate particle size: 12 - 20 nm
  • Surface area, 200 m2/g
  • Isoelectric point: 2.2
  • γc of treated surfaces: 44 mN/m
  • Bulk density: ~50 g/L
  • pH, (4% aqueous slurry): 3.5-4.5
  • Melting Point: >1,600°

    Molecular Weight: 60.09

    Alternative Name: Fumed silica

    Specific Gravity: 2.2

    HMIS Key: 2-0-0-X

    Hydrolytic Sensitivity: 5: forms reversible hydrate

    Formula: SiO2

    Refractive Index: 1.46

    TSCA: TSCA

    Additional Properties: Isoelectric point: 2.2
    ?c: 44 mN/m
    pH, 4% aqueous slurry: 3.5-4.5
    Surface area, 200 m2/g