637238
Silicon dioxide
nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis
Synonym(s):
Silica, Nanosilica, Silicon dioxide
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About This Item
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-545-4
MDL number:
assay
99.5% trace metals basis
form
nanopowder
reaction suitability
core: silicon
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
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.
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Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Related Content
This thematic issue focuses on the emerging applications of nanomaterials. Nanomaterials are defined as substances with at least one dimension smaller than 100 nm.
Unusual nonlinear optical properties of SiO2 nanocomposite in weak optical fields
Milichko VA, et al.
Applied Physics. A, Materials Science & Processing, 111(1), 319-322 (2013)
APS-silane modification of silica nanoparticles: effect of treatm,ent's variables on the grafting content and colloidal stability of nanoparticles
Journal of Coatings Technology and Research, 11(4), 651-660 (2014)
Nanocomposite calcium alginate fibres containing SiO2 and bioglass
Bogun M, et al.
Spine, 12, 18-18 (2010)