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Tetraethoxysilane, 98%, Thermo Scientific Chemicals Product Code.: 11433950
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Tetraethoxysilane, 98%, Thermo Scientific Chemicals

Product Code. 11433950
100 mL
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Product Code. 11433950

Brand: Thermo Scientific Alfa Aesar A14965.AE

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Description

Tetraethoxysilane is the main precursor material for the synthesis of zeolites and silicon dioxide, which is used in semiconductor industry. It is widely used as cross linking agents in silicon polymers and in aerogel preparations.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Tetraethoxysilane is the main precursor material for the synthesis of zeolites and silicon dioxide, which is used in semiconductor industry. It is widely used as cross linking agents in silicon polymers and in aerogel preparations.

Solubility
Soluble in ethanol and 2-propanol.

Notes
Degrades in water. Keep container tightly closed in a dry and well-ventilated place.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 78-10-4
Molecular Formula C8H20O4Si
Molecular Weight (g/mol) 208.329
MDL Number MFCD00009062
InChI Key BOTDANWDWHJENH-UHFFFAOYSA-N
Synonym tetraethyl orthosilicate, tetraethoxysilane, teos, ethyl silicate, silicon ethoxide, silicon tetraethoxide, silane, tetraethoxy, dynasil a, tetraethoxysilicon, ethyl orthosilicateShow MoreShow Less
PubChem CID 6517
IUPAC Name tetraethyl silicate
SMILES CCO[Si](OCC)(OCC)OCC

Specifications

Melting Point -85°C
Density 0.934
Boiling Point 168°C
Flash Point 46°C (116°F)
Assay Percent Range 98%
Odor Pleasant
Linear Formula (C2H5O)4Si
Refractive Index 1.383
Quantity 100 mL
UN Number UN1292
Beilstein 1422225
Sensitivity Moisture sensitive
Merck Index 14,3851
Solubility Information Soluble in ethanol and 2-propanol.
Formula Weight 208.33
Percent Purity 98%
Chemical Name or Material Tetraethoxysilane
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5 results found
Lot Number Certificate Type Date Catalog Number
Lot Number10252403 Certificate TypeCertificate of Analysis Date12/09/2024 Catalog NumberA14965.0F,A14965.AP,A14965.AE
Lot Number10219894 Certificate TypeCertificate of Analysis Date12/04/2024 Catalog NumberA14965.0F,A14965.AP,A14965.AE
Lot Number10249824 Certificate TypeCertificate of Analysis Date05/03/2024 Catalog NumberA14965.0F,A14965.AP,A14965.AE
Lot Number10248400 Certificate TypeCertificate of Analysis Date23/10/2023 Catalog NumberA14965.0F,A14965.AP,A14965.AE
Lot Number10230270 Certificate TypeCertificate of Analysis Date25/07/2023 Catalog NumberA14965.0F,A14965.AP,A14965.AE

Safety and Handling

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Product Identifier
  • Tetraethoxysilane
 Signal Word
  • Warning
 Hazard Category
  • Acute toxicity Category 4
  • Serious eye damage/eye irritation Category 2
  • Flammable liquid Category 3
  • Specific target organ toxicity Category 3
 Hazard Statement
  • H226-Flammable liquid and vapour.
  • H319-Causes serious eye irritation.
  • H332-Harmful if inhaled.
  • H335-May cause respiratory irritation.
 Precautionary Statement
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
 Supplemental information
  • MIXTURE LIST-Contains : Ethyl silicate
SDS

RUO – Research Use Only

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