Tetraethyl orthosilicate, 99%
Order Tetraethyl orthosilicate, 99% (CAS 78-10-4) online at Zemixal: C8H20O4Si, COA and SDS with every lot, worldwide shipping.
About Tetraethyl orthosilicate, 99%
Zemixal supplies Tetraethyl orthosilicate, 99% within its pharma Intermediates & Building Blocks portfolio. Identity at a glance (99%): CAS 78-10-4, formula C8H20O4Si and molar mass 208.33 g/mol. Typical appearance is colourless liquid.
Where it is used
- Organic synthesis
- Paints, coatings & inks
Safe handling
Literature values: boiling point 168 °C and density 0.933 g/mL at 20 °C. It carries the GHS signal word Warning (H226, H319, H332 and H335), so wear gloves and eye protection and work with good ventilation. For transport it ships as UN UN 1292.
Order it in 250 mL, 1 L and 220 kg packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Organic synthesis
- Paints, coatings & inks
Applications
Specifications and identifiers
| Product name | Tetraethyl orthosilicate, 99% |
|---|---|
| Catalogue number | ZX-010206 |
| CAS number | 78-10-4 |
| IUPAC name | tetraethyl silicate |
| Molecular formula | C8H20O4Si |
| Molar mass | 208.33 g/mol |
| Exact mass | 208.1131 |
| Purity / assay | 99% |
| Physical form | Liquid |
| Appearance | Colourless liquid |
| Boiling point | 168 °C |
| Density | 0.933 g/mL at 20 °C |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 36.9 Ų |
| HS code | 29209099 |
| UN number | UN 1292 |
| InChIKey | BOTDANWDWHJENH-UHFFFAOYSA-N |
| SMILES | CCO[Si](OCC)(OCC)OCC |
| PubChem CID | 6517 |
| Synonyms | Orthosilicic acid tetraethyl ester, Silicon tetraethoxide, TEOS, Tetraethoxysilane, Tetraethoxysilicon(IV), Dynasil A, Silicon ethoxide, Silikan L, Ethyl orthosilicate, Etylu krzemian, Silane, tetraethoxy-, Tetraethylorthosilicate |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H226Flammable liquid and vapor
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements P210, P233, P240, P241, P242, P243, P261, P264 + P265, P271, P280, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P317, P319, P337 + P317, P370 + P378, P403 + P233, P403 + P235, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 250 mL | Quoted on request | |
| 1 L | Quoted on request | |
| 220 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Tetraethyl orthosilicate, 99%
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Other grades with CAS 78-10-4
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