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637246

Silice

Name: Silice
Brand: ALDRICH

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

Alternative plus écologique

Synonyme(s) :

Dioxyde de silicium

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A propos de cet article

Formule linéaire :

SiO₂

Numéro CAS:

7631-86-9

Poids moléculaire :

60.08

NACRES:

NA.23

PubChem Substance ID:

24882840

UNSPSC Code:

12352302

EC Number:

231-545-4

MDL number:

MFCD00011232

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Propriétés

Quality Segment

100

assay

99.5% trace metals basis

form

nanopowder (spherical, porous)

composition

SiO₂

reaction suitability

core: silicon

greener alternative product characteristics

Design for Energy Efficiency
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product, Greener Alternative Product

surface area

590-690 m²/g , TEM

particle size

5-20 nm (TEM)

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

density

2.2-2.6 g/mL at 25 °C

bulk density

0.068 g/mL

application(s)

glass & ceramic

greener alternative category

Enabling, Enabling

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives. This is an enabling product and can be used as an alternative anode in lithium ion batteries due to its high energy storage capacity, low working potential, and abundance, offering a greener, potentially more sustainable option for energy storage. Click here for more information.

Porous silicon dioxide nanopowder, also known as silica or silicon dioxide is a fine, white powder with a porous structure. It is composed of nanoscopic particles of silicon dioxide, 5-20 nm in size and has a high surface area due to its porous structure.

Application

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.

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Classe de stockage

11 - Combustible Solids

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Point d'éclair (°F)

Not applicable

Point d'éclair (°C)