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  7. Tetraethoxysilane, 99.9%

Tetraethoxysilane, 99.9%

Catalog No. AA4025122
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AA4025136 500 g
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Catalog No. AA4025122 Supplier Thermo Scientific Chemicals Supplier No. 04025122
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Description

CAS: 78-10-4 | C8H20O4Si | 208.329 g/mol

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.

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 orthosilicate
PubChem CID 6517
IUPAC Name tetraethyl silicate
SMILES CCO[Si](OCC)(OCC)OCC

Specifications

Boiling Point 168°C
Melting Point °C to 85°C
Physical Form Liquid
Quantity 100 g
Assay Percent Range 99.9%
Beilstein 1422225
Flash Point 46°C (116°F)
Solubility Information Soluble in ethanol and 2-propanol.
Formula Weight 208.33
Refractive Index 1.382
Sensitivity Moisture sensitive
Density 0.934 g/mL
Chemical Name or Material Tetraethoxysilane
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Safety and Handling

Hazard Category H226-H319-H332-H335
Precautionary Statement P210-P233-P235-P240-P241-P242-P243-P261-P264b-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P312-P370+P378q-P501c
DOTInformation Hazard Class: 3; Packaging Group: III
EINECSNumber 201-083-8
RTECSNumber VV9450000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only