Tetraethyl orthosilicate, 98%, Thermo Scientific Chemicals

Description

This Thermo Scientific Chemicals 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 Chemicals.

Specifications

Chemical Identifiers

• CAS: 78-10-4
• Molecular Formula: C₈H₂₀O₄Si
• Molecular Weight (g/mol): 208.33
• 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: -77.0°C
• Density: 0.9400g/mL
• Boiling Point: 166.0°C to 169.0°C
• Flash Point: 45°C
• Infrared Spectrum: Authentic
• Assay Percent Range: 1% max. Ethanol (GC)
• Packaging: Glass bottle
• Linear Formula: Si(OC₂H₅)₄
• Refractive Index: 1.3820 to 1.3840
• Quantity: 250 mL
• Beilstein: 01,334
• Merck Index: 15,3903
• Specific Gravity: 0.94
• Solubility Information: Solubility in water: hydrolysis. Other solubilities: miscible with alcohol, hydrocarbons, aromatics,, esters, ketones,, slightly soluble in benzene
• Viscosity: 0.75 mPa.s (20°C)
• Formula Weight: 208.33
• Percent Purity: 98%
• Physical Form: Liquid
• Chemical Name or Material: Tetraethyl orthosilicate

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