Accéder au contenu
Merck
Toutes les photos(3)

Key Documents

View All Documentation

131903

Sigma-Aldrich

Orthosilicate de tétraéthyle

reagent grade, 98%

Synonyme(s) :

Ester tétraéthylique de l'acide orthosilicique, TEOS, Tétraéthoxysilane

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(3)

About This Item

Formule linéaire :
Si(OC2H5)4
Numéro CAS:
78-10-4
Poids moléculaire :
208.33
Numéro Beilstein :
1422225
Numéro CE :
201-083-8
Numéro MDL:
MFCD00009062
Code UNSPSC :
12352103
ID de substance PubChem :
24848042
Nomenclature NACRES :
NA.23

Qualité

reagent grade

Niveau de qualité

200

Densité de vapeur

7.2 (vs air)

Pression de vapeur

<1 mmHg ( 20 °C)

Pureté

98%

Forme

liquid

Indice de réfraction

n20/D 1.382 (lit.)

Point d'ébullition

168 °C (lit.)

Densité

0.933 g/mL at 20 °C (lit.)

Chaîne 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

Clé InChI

BOTDANWDWHJENH-UHFFFAOYSA-N

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Catégories apparentées

Description générale

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.

Application

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.

Couramment utilisé comme précurseur dans la préparation de xérogel
Interagit avec la dodécylamine dans la formation de composés d'intercalation de magadiite-H+ et utilisé dans une étude portant sur des verres bioactifs comprenant un mélange de métaux.

Caractéristiques et avantages

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

Pictogrammes

FlameExclamation mark
GHS02,GHS07

Mention d'avertissement

Warning

Mentions de danger

H226,H319,H332,H335

Classification des risques

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

Organes cibles

Respiratory system

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

113.0 °F - closed cup

Point d'éclair (°C)

45 °C - closed cup

Équipement de protection individuelle

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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
WXBB7845V
STBK7206
MKCP7644
MKCP3808
MKCP2926

Vous ne trouvez pas la bonne version ?

Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Rechercher un(e) COA

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
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
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
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.
Afficher tous les articles scientifiques apparentés

Articles

Bio-Inspired “Green” Synthesis of Nanomaterials and their Applications

Silica is a very popular inorganic nanomaterial used in a wide range of applications including fillers for rubber, catalyst supports, separation media, carriers in food and agriculture, and abrasive/anticaking agents in cosmetics. It is also widely believed to be an important material for biomedical applications for following reasons.

Vistas in Current Magnetic Materials Research

Magnetism and magnetic materials have been of scientific interest for over 1,000 years. More recently, fundamental investigations have focused on exploring the various types of magnetic materials and understanding the magnetic effects created by electric currents.

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Nanowire Synthesis: From Top-Down to Bottom-Up

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

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique