Merck
All Photos(3)

637246

Sigma-Aldrich

Silicon dioxide

nanopowder (spherical, porous), 5-20 nm particle size (TEM), 99.5% trace metals basis

Synonym(s):
Silica, Silicon dioxide
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.23

Nível de qualidade

100

teor

99.5% trace metals basis

forma

nanopowder (spherical, porous)

tamanho de partícula

5-20 nm (TEM)

área da superfície

590-690 m2/g (TEM)

pb

2230 °C (lit.)

pf

>1600 °C (lit.)

densidade

2.2-2.6 g/mL at 25 °C

densidade volumétrica

0.068 g/mL

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Aplicação

Silicon dioxide finds applications in various fields, ranging from catalysis to composite synthesis. Some major studies are listed here:
  • Pickering emulsion polymerization using a silicon dioxide nanoparticle stabilizer to form molecularly imprinted polymers for steroid recognition.
  • Mesoporous silica is used as a catalyst support in the preparation of multiwalled carbon nanotubes (MWCNTs).
  • It is used as a ring opening of tetrahydrofuran-dimethanol to 1,2,6-hexanetriol.
  • It maybe used to prepare silica/brominated poly(phenylene oxide) nanocomposites membranes for CO2 seperations.
  • The composite scaffold of chitosan/chondroitin sulfate/nano-SiO2 was fabricated by lyophilization.
  • Nanocomposites preparation of silica, single-wall carbon nanotubes, and graphite nanoplatelets in an epoxy matrix have been reported.6
  • Dielectric spectroscopy study of the polystyrene/nanosilica model system has been studied.
  • PMMA SiO2 nanocomposites were reported to be synthesized.

Embalagem

50 g in glass bottle
250, 500 g in poly drum

Código de classe de armazenamento

11 - Combustible Solids

WGK

nwg

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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