SILICON DIOXIDE, amorphous, HEXAMETHYLDISILAZANE TREATED

Product Code: SIS6962.0
CAS No: 68909-20-6 & 7631-86-9
SDS Sheets: EU | US
COMMERCIAL
68909-20-6 & 7631-86-9
Pack Size
Quantity
Price
 
500 g
$80.00
2 kg
$220.00
15 kg
Contact Us For Pricing

Product data and descriptions listed are typical values, not intended to be used as specification.

  • Einecs Number

    272-697-1
  • Synonyms

    Fumed silica, HMDZ treated
  • HMIS

    2-0-0-X
  • Molecular Formula

    SiO2
  • Molecular Weight (g/mol)

    60.09
  • TSCA

    Yes
  • Boiling Point (˚C/mmHg)

    NA
  • Density (g/mL)

    2.2
  • Melting Point (˚C)

    >1,600°
  • Refractive Index @ 20˚C

    1.45

Additional Properties

  • Hydrolytic Sensitivity

    5: forms reversible hydrate
  • Safety

  • Packaging Under

    Nitrogen
  • Organosilane-modified 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

  • Hexamethyldisilazane, HMDZ, treated
  • Amorphous
  • Fumed silica
  • Surface area, 150-200 m2/g
  • Calculated ratio: (CH3)3Si/HO-Si: 2/1
  • Carbon content: 3%
  • Ultimate particle size: 20 nm