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Tetraethylorthosilicat
packaged for use in deposition systems
Synonym(e):
Tetraethylorthosilikat, Orthokieselsäure-Tetraethylester, TEOS, Tetraethoxysilan
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25 ML
358,50 €
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25 ML
358,50 €
About This Item
Lineare Formel:
Si(OC2H5)4
CAS-Nummer:
Molekulargewicht:
208.33
Beilstein:
1422225
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352103
PubChem Substanz-ID:
NACRES:
NA.23
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Dampfdichte
7.2 (vs air)
Qualitätsniveau
Dampfdruck
<1 mmHg ( 20 °C)
Assay
≥99.5% (GC)
Form
liquid
Brechungsindex
n20/D 1.382 (lit.)
bp
168 °C (lit.)
Dichte
0.933 g/mL at 20 °C (lit.)
SMILES String
CCO[Si](OCC)(OCC)OCC
InChI
1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
InChIKey
BOTDANWDWHJENH-UHFFFAOYSA-N
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Anwendung
Häufig als Vorstufe zur Herstellung von Xerogel verwendet
Wechselwirkung mit Dodecylamin bei der Bildung von Interkalationsverbindungen von H+-Magadiit und Verwendung in einer Studie über bioaktive Gläser aus Mischmetall.
Tetraethyl orthosilicate (TEOS) is an oxygen containing precursor of Si used for the deposition of:
The films can be deposited at low temperatues (<250 °C). TEOS is also used to deposit mesoporous and nanoporous thin films of silica. These porous films can be doped during deposition to further enhance their properties.
- Si oxide
- Oxycarbide
- Doped silicate
- Silanol
- Siloxane polymer
- Organosilicon thin films
The films can be deposited at low temperatues (<250 °C). TEOS is also used to deposit mesoporous and nanoporous thin films of silica. These porous films can be doped during deposition to further enhance their properties.
Signalwort
Warning
H-Sätze
Gefahreneinstufungen
Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
Zielorgane
Respiratory system
Lagerklassenschlüssel
3 - Flammable liquids
WGK
WGK 1
Flammpunkt (°F)
113.0 °F - closed cup
Flammpunkt (°C)
45 °C - closed cup
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Andreas Kay et al.
Journal of the American Chemical Society, 128(49), 15714-15721 (2006-12-07)
Thin films of silicon-doped Fe2O3 were deposited by APCVD (atmospheric pressure chemical vapor deposition) from Fe(CO)5 and TEOS (tetraethoxysilane) on SnO2-coated glass at 415 degrees C. HRSEM reveals a highly developed dendritic nanostructure of 500 nm thickness having a feature
Nils R Blumenthal et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(45), 16124-16129 (2014-10-29)
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Seong Cheol Hong et al.
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Lin Lin et al.
Colloids and surfaces. B, Biointerfaces, 101, 97-100 (2012-07-17)
Hollow silica spheres with round mesoporous shells were synthesized by core-shell template method, using monodispersed cationic polystyrene particles as core, and TEOS (tetraethoxysilane) as the silica source to form shell. After calcination at 550°C, uniform spheres with a thin shell
Tom Hasell et al.
Advanced materials (Deerfield Beach, Fla.), 24(42), 5732-5737 (2012-08-30)
Macroscopic inorganic porous beads are imbibed with a "porous molecular additive" by simple solution processing techniques, resulting in controllable loading and increased surface area. The porous additive consists of soluble organic cage molecules that precipitate as microporous crystals when solutions
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