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Merck

131903

Sigma-Aldrich

Tetraethyl orthosilicate

reagent grade, 98%

Synonim(y):

Orthosilicic acid tetraethyl ester, Silicon tetraethoxide, TEOS, Tetraethoxysilane, Tetraethoxysilicon(IV), Tetraethyl silicate

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About This Item

Wzór liniowy:
Si(OC2H5)4
Numer CAS:
Masa cząsteczkowa:
208.33
Beilstein:
1422225
Numer WE:
Numer MDL:
Kod UNSPSC:
12352103
Identyfikator substancji w PubChem:
NACRES:
NA.23

klasa czystości

reagent grade

Poziom jakości

gęstość pary

7.2 (vs air)

ciśnienie pary

<1 mmHg ( 20 °C)

Próba

98%

Formularz

liquid

współczynnik refrakcji

n20/D 1.382 (lit.)

bp

168 °C (lit.)

gęstość

0.933 g/mL at 20 °C (lit.)

ciąg SMILES

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

Klucz InChI

BOTDANWDWHJENH-UHFFFAOYSA-N

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Opis ogólny

Tetraethyl orthosilicate(TEOS) is a colorless liquid alkoxide widely used as precursor to deposition of silicon dioxide (SiO2) thin films. It is also utilized in hydrogels, nanoparticle-based drug delivery systems, and chemical crosslinking of polymers.

Zastosowanie

Commonly used as a precursor to prepare xerogel
Tetraethyl orthosilicate can be used:
  • As an anti-solvent to fabricate efficient perovskite layer for inverted planar solar cells with enhanced power conversion efficiency and reproducibility. TEOS helps to achieve high-quality perovskite films with reduced density of defects, and thus slower carrier recombination.
  • As a sol-gel precursor to synthesize SiO2-TiO2 anti-reflective self-cleaning coatings for solar cells.
  • To fabricate nano silica functionalized crosslinked hybrid membranes for proton exchange membrane fuel cell applications. These membranes have better proton conductivity and thermal stability.
  • To prepare poly(vinylidene fluoride)/TEOS matrix separator to enhance the performance of Li-ion batteries. The separator exhibits excellent electrolyte retention and wettability.

Will interact with dodecylamine in the formation of intercalation compounds of H+-magadiite and used in a study of mixed-metal bioactive glasses.

Cechy i korzyści

  • Excellent adhesion on substrates
  • Uniform film deposition
  • Cross-linker to introduce polymer strands into hydrogel

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Piktogramy

FlameExclamation mark

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

Organy docelowe

Respiratory system

Kod klasy składowania

3 - Flammable liquids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

113.0 °F - closed cup

Temperatura zapłonu (°C)

45 °C - closed cup

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Valeria De Matteis et al.
Nanoscale research letters, 14(1), 109-109 (2019-03-30)
The nowadays growing use of nanoparticles (NPs) in commercial products does not match a comprehensive understanding of their potential harmfulness. More in vitro investigations are required to address how the physicochemical properties of NPs guide their engulfment within cells and
Olinka Ramírez-Soto et al.
Science advances, 6(34), eaba4330-eaba4330 (2020-09-03)
Colliding drops are encountered in everyday technologies and natural processes, from combustion engines and commodity sprays to raindrops and cloud formation. The outcome of a collision depends on many factors, including the impact velocity and the degree of alignment, and
Geetha B Heggannavar et al.
ACS omega, 3(7), 8017-8026 (2018-08-09)
Brain glioma is the most lethal type of cancer, with extremely poor prognosis and high relapse. Unfortunately, the treatment of brain glioma is often limited because of the low permeability of anticancer drugs across the blood-brain barrier (BBB). To circumvent
Lin Zhao et al.
ACS nano, 13(7), 7508-7516 (2019-06-15)
Heat at intermediate temperatures (120-220 °C) is in significant demand in both industrial and domestic sectors for applications such as water and space heating, steam generation, sterilization, and other industrial processes. Harnessing heat from solar energy at these temperatures, however
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)
Extracellular soluble signals are known to play a critical role in maintaining neuronal function and homeostasis in the CNS. However, the CNS is also composed of extracellular matrix macromolecules and glia support cells, and the contribution of the physical attributes

Produkty

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

Hybrid organic-inorganic sol-gel materials containing silica were first called “ORMOSILs” in 1984.

The properties of many devices are limited by the intrinsic properties of the materials that compose them.

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