637238

Sílice

nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis

• Sinónimos: Dióxido de silicio
• Fórmula lineal: SiO₂
• Número de CAS: 7631-86-9
• Peso molecular: 60.08
• EC Number: 231-545-4
• MDL number: MFCD00011232
• UNSPSC Code: 12352302
• PubChem Substance ID: 24882839
• NACRES: NA.23

Propiedades

• Quality Level: 100
• assay: 99.5% trace metals basis
• form: nanopowder
• particle size: 10-20 nm (BET)
• bp: 2230 °C (lit.)
• mp: >1600 °C (lit.)
• density: 2.2-2.6 g/mL at 25 °C
• bulk density: 0.011 g/mL
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Descripción

General description

The refractive index of silica nanoparticles is similar to polymeric coatings, so it finds several applications in the preparations of nanocomposites. Properties suh as, thermal resistance, electrical and mechanical are enhanced. Silica nanoparticles find uses in various fields of catalysts, pigment stabilization, electronics and sensors.

Application

Silica nanoparticles have been used :

• To study the nonlinear optical properties of SiO₂ nanocomposites in weak optical fields.
• As a nanoadditive in nanocomposite calcium alginate fibers.
• As dispersant in liquid polymethylsiloxane to exihibit unique optical non linearity in low intensity visible radiation fields.

Información de seguridad

• Storage Class: 11 - Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves