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Sigma-Aldrich

Silicon dioxide

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

Szinonimák:

Silica, Nanosilica, Silicon dioxide

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Összes fotó(3)

About This Item

Lineáris képlet:
SiO2
CAS-szám:
7631-86-9
Molekulatömeg:
60.08
EC-szám:
231-545-4
MDL-szám:
MFCD00011232
UNSPSC kód:
12352302
PubChem Substance ID:
24882840
NACRES:
NA.23

Minőségi szint

100

Teszt

99.5% trace metals basis

Forma

nanopowder (spherical, porous)

külső felület

590-690 m2/g , TEM

részecskeméret

5-20 nm (TEM)

bp

2230 °C (lit.)

mp

>1600 °C (lit.)

sűrűség

2.2-2.6 g/mL at 25 °C

térfogatsúly

0.068 g/mL

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

Nemzetközi kémiai azonosító kulcs

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Általános leírás

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.

Alkalmazás

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.

Tárolási osztály kódja

11 - Combustible Solids

WGK

nwg

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Egyéni védőeszköz

dust mask type N95 (US), Eyeshields, Gloves

Válasszon a legfrissebb verziók közül:

Analitikai tanúsítványok (COA)

Lot/Batch Number
MKCV7595
MKCW6848
MKCW2768
MKCV4617
MKCT1891

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COA keresése

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Az Ön által nemrégiben megvásárolt termékekre vonatkozó dokumentumokat a Dokumentumtárban találja.

Dokumentumtár megtekintése

Catalyst studies on the ring opening of tetrahydrofuran-dimethanol to 1, 2, 6-hexanetriol
Buntara T, et al.
Catalysis Today, 210, 106-116 (2013)
Nanocomposite membranes for CO2 separations: silica/brominated poly (phenylene oxide)
Hu X, et al.
Industrial & Engineering Chemistry Research, 46(5), 1547-1551 (2007)
Molecularly imprinted polymer beads prepared by pickering emulsion polymerization for steroid recognition
Zhou T, et al.
Journal of Applied Polymer Science, 131(1) (2014)
Carbon nanotube bundles self-assembled in double helix microstructures.
Cervantes-Sodi F, et al.
Carbon, 50(10), 3688-3693 (2010)
Effect of surface modification of silica nanoparticles on toxicity and cellular uptake by human peripheral blood lymphocytes in vitro
Lankoff A, et al.
Nanotoxicology, 7(3), 235-250 (2011)
View All Related Papers

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Recent Developments in Silicon Anode Materials for High Performance Lithium-Ion Batteries

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Green Synthesis of Nanomaterials

Silica's versatility spans various industries, including biomedical applications.

Tudóscsoportunk valamennyi kutatási területen rendelkezik tapasztalattal, beleértve az élettudományt, az anyagtudományt, a kémiai szintézist, a kromatográfiát, az analitikát és még sok más területet.

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