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Tetraethoxysilane, 99.999+% (metals basis)

Catalog No. p-7049806
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Quantity:
250 g
50 g
Catalog No. Quantity
AA2296718 50 g
AA2296730 250 g
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Catalog No. AA2296718

Supplier: Thermo Scientific Chemicals 02296718

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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 a cross linking agent 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 -85°C
Color Colorless
Physical Form Liquid
Quantity 50 g
Linear Formula (C2H5O)4Si
UN Number UN1292
Beilstein 1422225
Flash Point 46°C (116°F)
Merck Index 14,3851
Solubility Information Soluble in ethanol and 2-propanol.
Formula Weight 208.33
Percent Purity ≥99.999%
Odor Pleasant
Refractive Index 1.382
Sensitivity Moisture sensitive
Density 0.934 g/mL
Assay (metals basis)
Chemical Name or Material Tetraethoxysilane
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Safety and Handling

Hazard Category H226-H319-H332-H335
Hazard Statement GHS H Statement
H226-H332-H319-H335
Flammable liquid and vapor.
Harmful if inhaled.
Causes serious eye irritation.
May cause respiratory irritation.
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 Transport Hazard Class: 3; Packing Group: III; Proper Shipping Name: TETRAETHYL SILICATE
EINECSNumber 201-083-8
RTECSNumber VV9450000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only