Tetraethyl orthosilicate, 98%, Thermo Scientific™

Brand:  Thermo Scientific Acros 157810010

Product Code. 10357570

Description

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

Chemical Identifiers

• CAS: 78-10-4
• Molecular Weight (g/mol): 208.33
• 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

• Chemical Name or Material: Tetraethyl orthosilicate
• Density: 0.9400g/mL
• Melting Point: -77.0°C
• Flash Point: 45°C
• Infrared Spectrum: Authentic
• Linear Formula: Si(OC₂H₅)₄
• Beilstein: 01,334
• Merck Index: 15,3903
• Synonym: tetraethyl orthosilicate, tetraethoxysilane, teos, ethyl silicate, silicon ethoxide, silicon tetraethoxide, silane, tetraethoxy, dynasil a, tetraethoxysilicon, ethyl orthosilicate
• Solubility Information: Solubility in water: hydrolysis. Other solubilities: miscible with alcohol, hydrocarbons, aromatics,, esters, ketones,, slightly soluble in benzene
• Specific Gravity: 0.94
• IUPAC Name: tetraethyl silicate
• PubChem CID: 6517
• Physical Form: Liquid
• Viscosity: 0.75 mPa.s (20°C)

• CAS: 78-10-4
• Color: Undesignated
• Boiling Point: 166.0°C to 169.0°C
• Assay Percent Range: 1% max. Ethanol (GC)
• Molecular Formula: C₈H₂₀O₄Si
• MDL Number: MFCD00009062
• Packaging: Glass bottle
• Refractive Index: 1.3820 to 1.3840
• Quantity: 1L
• InChI Key: BOTDANWDWHJENH-UHFFFAOYSA-N
• SMILES: CCO[Si](OCC)(OCC)OCC
• Molecular Weight (g/mol): 208.33
• Formula Weight: 208.33
• Percent Purity: 98%

Safety and Handling

Product Identifier

• Tetraethyl orthosilicate

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

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

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.

RUO – Research Use Only