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637238

Sigma-Aldrich

Sílice

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

Sinónimos:

Dióxido de silicio

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About This Item

Fórmula lineal:
SiO2
Número de CAS:
7631-86-9
Peso molecular:
60.08
Número CE:
231-545-4
Número MDL:
MFCD00011232
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
24882839
NACRES:
NA.23

Análisis

99.5% trace metals basis

formulario

nanopowder

tamaño de partícula

10-20 nm (BET)

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

densidad

2.2-2.6 g/mL at 25 °C

densidad aparente

0.011 g/mL

cadena SMILES

O=[Si]=O

InChI

1S/O2Si/c1-3-2

Clave InChI

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Descripción general

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.

Aplicación

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.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

nwg

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
MKCQ2570
MKCP6654
MKCP6804
MKCM8185
MKCJ8466

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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)
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)
Saisai Wei et al.
The international journal of biochemistry & cell biology, 113, 95-102 (2019-06-21)
ZnO nanoparticle (ZnO NP) exposure causes oxidative stress in the respiratory system, leading to pulmonary damage. Activating transcription factor 3 (ATF3) participates in a variety of cellular stress responses. However, the role of ATF3 in ZnO NP genotoxicity and cytotoxicity
K E Kovalenko et al.
Ecological applications : a publication of the Ecological Society of America, 23(5), 1048-1060 (2013-08-24)
Boreal wetlands play an important role in global carbon balance. However, their ecosystem function is threatened by direct anthropogenic disturbance and climate change. Oil sands surface mining in the boreal regions of Western Canada denudes tracts of land of organic
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