Tetraethyl orthosilicate, 98%, AcroSeal™, 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
• 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: AcroSeal™ Glass Bottle
• Refractive Index: 1.3820 to 1.3840
• Linear Formula: Si(OC₂H₅)₄
• Quantity: 100 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

Hazard Category	GHS Signal Word: Warning
Hazard Statement	GHS H Statement: Causes serious eye irritation. Harmful if inhaled. May cause respiratory irritation. Flammable liquid and vapor.
Precautionary Statement	GHS P Statement: Avoid breathing dust/fume/gas/mist/vapors/spray. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
EINECSNumber	201-083-8

SDS

RUO – Research Use Only