Tetraethoxysilane, 99+%

Product Code.	Quantity	unitSize
11367687	500 g	500g
11397687	50 g	50g

Product Code. 11367687 Supplier Thermo Scientific Alfa Aesar Supplier No. 014082.36

Description

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

As a binding agent and as a polymerization catalystTetraethoxysilane 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.

Specifications

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

• Melting Point: 85°C
• Density: 0.934 g/mL
• Boiling Point: 168°C
• Flash Point: 46°C (116°F)
• Assay Percent Range: >99%
• Refractive Index: 1.382
• Quantity: 500 g
• Beilstein: 1422225
• Sensitivity: Moisture sensitive
• Solubility Information: Soluble in ethanol and 2-propanol.
• Formula Weight: 208.33
• Physical Form: Liquid
• Chemical Name or Material: Tetraethoxysilane

Safety and Handling

Product Identifier

• Tetraethoxysilane

Signalwort

• Warning

Gefahrenkategorie

• Acute toxicity Category 4
• Serious eye damage/eye irritation Category 2
• Flammable liquid Category 3
• Specific target organ toxicity Category 3

Gefahrenhinweis

• H226-Flammable liquid and vapour.
• H319-Causes serious eye irritation.
• H332-Harmful if inhaled.
• H335-May cause respiratory irritation.

Sicherheitshinweis

• 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.

Ergänzende Informationen

• MIXTURE LIST-Contain: Ethyl silicate

Sicherheitsdatenblatt (SDS)

RUO – Research Use Only