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759414

Sigma-Aldrich

tetra-etil ortosilicato

packaged for use in deposition systems

Sinonimo/i:

Estere tetraetilico dell’acido ortosilicico, TEOS, tetra-etossi-silano

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25 ML
358,00 €

358,00 €

Prezzo di listino716,00 €Risparmia il 50%
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Cambia visualizzazione
25 ML
358,00 €

About This Item

Formula condensata:
Si(OC2H5)4
Numero CAS:
78-10-4
Peso molecolare:
208.33
Beilstein:
1422225
Numero CE:
201-083-8
Numero MDL:
MFCD00009062
Codice UNSPSC:
12352103
ID PubChem:
329766783
NACRES:
NA.23

358,00 €

Prezzo di listino716,00 €Risparmia il 50%
Per informazioni sulla disponibilità, contatta il Servizio Clienti.
Richiedi un ordine bulk

Densità del vapore

7.2 (vs air)

Livello qualitativo

100

Tensione di vapore

<1 mmHg ( 20 °C)

Saggio

≥99.5% (GC)

Stato

liquid

Indice di rifrazione

n20/D 1.382 (lit.)

P. ebollizione

168 °C (lit.)

Densità

0.933 g/mL at 20 °C (lit.)

Stringa SMILE

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
BOTDANWDWHJENH-UHFFFAOYSA-N

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Categorie correlate

Applicazioni

Interagisce con dodecil-ammina nella formazione di composti di intercalazione di H+-magadiite e usati in uno studio di vetri bioattivi con metalli misti.
Usato comunemente come precursore nella preparazione di xerogel
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.

Pittogrammi

FlameExclamation mark
GHS02,GHS07

Avvertenze

Warning

Indicazioni di pericolo

H226,H319,H332,H335

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

113.0 °F - closed cup

Punto d’infiammabilità (°C)

45 °C - closed cup

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Certificati d'analisi (COA)

Lot/Batch Number
MKCP3465
SHBK9149
MKBF9200V

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Tetramethyl orthosilicate for synthesis

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Sigma-Aldrich

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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
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.
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
Evan M Hetrick et al.
Biomaterials, 30(14), 2782-2789 (2009-02-24)
The ability of nitric oxide (NO)-releasing silica nanoparticles to kill biofilm-based microbial cells is reported. Biofilms of Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis, and Candida albicans were formed in vitro and exposed to NO-releasing silica nanoparticles. Replicative viability
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
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Domande

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

    1 risposta

    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

      Utile?

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

    1 risposta

    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

      Utile?

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

    1 risposta

    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.

      Utile?

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