Tetraethoxysilane, 99.999+% (metals basis), Thermo Scientific Chemicals

Product Code	Brand	Quantity
11338237	Thermo Scientific Alfa Aesar 022967.18	50 g
11328237	Thermo Scientific Alfa Aesar 022967.30	250 g

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 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 Weight (g/mol): 208.329
• InChI Key: BOTDANWDWHJENH-UHFFFAOYSA-N
• PubChem CID: 6517
• SMILES: CCO[Si](OCC)(OCC)OCC

• Molecular Formula: C8H20O4Si
• MDL Number: MFCD00009062
• Synonym: tetraethyl orthosilicate, tetraethoxysilane, teos, ethyl silicate, silicon ethoxide, silicon tetraethoxide, silane, tetraethoxy, dynasil a, tetraethoxysilicon, ethyl orthosilicate
• IUPAC Name: tetraethyl silicate

Specifications

• Boiling Point: 168°C
• CAS: 78-10-4
• Physical Form: Liquid
• Linear Formula: (C₂H₅O)₄Si
• UN Number: UN1292
• Flash Point: 46°C (116°F)
• Synonym: tetraethyl orthosilicate, tetraethoxysilane, teos, ethyl silicate, silicon ethoxide, silicon tetraethoxide, silane, tetraethoxy, dynasil a, tetraethoxysilicon, ethyl orthosilicate
• InChI Key: BOTDANWDWHJENH-UHFFFAOYSA-N
• IUPAC Name: tetraethyl silicate
• PubChem CID: 6517
• Percent Purity: ≥99.999%
• Refractive Index: 1.382
• Density: 0.934 g/mL
• Chemical Name or Material: Tetraethoxysilane

• Melting Point: -85°C
• Color: Colorless
• Molecular Formula: C8H20O4Si
• MDL Number: MFCD00009062
• Beilstein: 1422225
• Merck Index: 14,3851
• Solubility Information: Soluble in ethanol and 2-propanol.
• SMILES: CCO[Si](OCC)(OCC)OCC
• Molecular Weight (g/mol): 208.329
• Formula Weight: 208.33
• Odor: Pleasant
• Sensitivity: Moisture sensitive
• Assay: (metals basis)

Safety and Handling

GHS H Statement
H226-H332-H319-H335
Flammable liquid and vapor.
Harmful if inhaled.
Causes serious eye irritation.
May cause respiratory irritation.

P210-P233-P235-P240-P241-P242-P243-P261-P264b-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P312-P370+P378q-P501c

H226-H319-H332-H335

missing translation for 'dotInformation' : Transport Hazard Class: 3; Packing Group: III; Proper Shipping Name: TETRAETHYL SILICATE

missing translation for 'einecsNumber' : 201-083-8

missing translation for 'rtecsNumber' : VV9450000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only