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759414

Sigma-Aldrich

Ortosilicato de tetraetilo

packaged for use in deposition systems

Sinónimos:

TEOS, Tetraetoxisilano, Éster tetraetílico del ácido ortosilícico

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25 ML
356,50 €

356,50 €

Precio de catálogo713,00 €Ahorre 50 %

Disponible para envío el22 de abril de 2025Detalles

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25 ML
356,50 €

About This Item

Fórmula lineal:
Si(OC2H5)4
Número de CAS:
78-10-4
Peso molecular:
208.33
Beilstein:
1422225
Número CE:
201-083-8
Número MDL:
MFCD00009062
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
329766783
NACRES:
NA.23

356,50 €

Precio de catálogo713,00 €Ahorre 50 %

Disponible para envío el22 de abril de 2025Detalles

Solicitar un pedido a granel

densidad de vapor

7.2 (vs air)

Nivel de calidad

100

presión de vapor

<1 mmHg ( 20 °C)

Ensayo

≥99.5% (GC)

Formulario

liquid

índice de refracción

n20/D 1.382 (lit.)

bp

168 °C (lit.)

densidad

0.933 g/mL at 20 °C (lit.)

cadena 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

Clave InChI

BOTDANWDWHJENH-UHFFFAOYSA-N

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Aplicación

Interaccionará con la dodecilamina en la formación de compuestos de intercalación de H+-magadiita y se utilizó en un estudio de vidrios bioactivos de metales mixtos.
Utilizado normalmente como precursor para preparar xerogeles
Tetraethyl orthosilicate (TEOS) is an oxygen containing precursor of Si used for the deposition of:
  • 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.

Pictogramas

FlameExclamation mark
GHS02,GHS07

Palabra de señalización

Warning

Frases de peligro

H226,H319,H332,H335

Clasificaciones de peligro

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

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

113.0 °F - closed cup

Punto de inflamabilidad (°C)

45 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
MKCP3465
SHBK9149
MKBF9200V

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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
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
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
Seong Cheol Hong et al.
International journal of nanomedicine, 6, 3219-3231 (2012-01-13)
Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely utilized for the diagnosis and therapy of specific diseases, as magnetic resonance imaging (MRI) contrast agents and drug-delivery carriers, due to their easy transportation to targeted areas by an external magnetic field.
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Preguntas

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 respuesta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 respuesta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. What is the Department of Transportation shipping information for this product?

    1 respuesta

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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