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637238

Sigma-Aldrich

Sílica

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

Sinônimo(s):

Dióxido de silício

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About This Item

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

Ensaio

99.5% trace metals basis

Formulário

nanopowder

tamanho de partícula

10-20 nm (BET)

p.e.

2230 °C (lit.)

pf

>1600 °C (lit.)

densidade

2.2-2.6 g/mL at 25 °C

densidade volumétrica

0.011 g/mL

cadeia de caracteres SMILES

O=[Si]=O

InChI

1S/O2Si/c1-3-2

chave InChI

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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 classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análise (COA)

Lot/Batch Number
MKCQ2570
MKCP6654
MKCP6804
MKCM8185
MKCJ8466

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Sílica

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Sigma-Aldrich

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Sílica

Óxido de alumínio nanopowder, 13 nm primary particle size (TEM), 99.8% trace metals basis

Sigma-Aldrich

718475

Óxido de alumínio

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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