Molekula
Tetraethoxysilane
Tetraethoxysilane is a silicon-based precursor used in sol-gel processes, coatings, and the synthesis of silica materials. It is a colorless liquid that hydrolyzes readily in moisture. CAS: 78-10-4, molecular formula: Si(OC₂H₅)₄, molecular weight: 208.33 g/mol, stored at ambient temperature. Signal word: Warning. Molekula supplies Tetraethoxysilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Tetraethoxysilane is a silicon-based precursor used in sol-gel processes, coatings, and the synthesis of silica materials. It is a colorless liquid that hydrolyzes readily in moisture. CAS: 78-10-4, molecular formula: Si(OC₂H₅)₄, molecular weight: 208.33 g/mol, stored at ambient temperature. Signal word: Warning. Molekula supplies Tetraethoxysilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless liquid |
| Assay | > 99 % |
| Ethanol (G.C.) | < 0,2 % |
| HCI content by titration | < 2 ppm |
| Hydrolysable Chloride | < 1 mg/Kg |
| For research use only, not for human use | For research use only, not for human use |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 45 C |
| Transport Class | 3 |
| Packing Group | III |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 78-10-4 |
| Molecular Formula | Si(OC2H5)4 |
| Molecular Weight | 208.33 |
| EC / UN Number | 1292 |
| REACH Code | Y110 |
| Tariff Code | 29209070 |
Safety & GHS
-
Explosive
GHS01
-
Flammable
GHS02
-
Oxidizing
GHS03
Hazard statements
- H226 Flammable liquid and vapour
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H335 May cause respiratory irritation
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is tetraethoxysilane used for?
Tetraethoxysilane is primarily used as a precursor in the synthesis of silica-based materials, including coatings, ceramics, and sol-gel processes.
What is the chemical formula and molecular weight of tetraethoxysilane?
The formula is Si(OC2H5)4 and the molecular weight is 208.33 g/mol.
How should tetraethoxysilane be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of tetraethoxysilane does Molekula supply?
Molekula supplies tetraethoxysilane in high-purity grade suitable for laboratory and industrial applications.
Can Molekula supply tetraethoxysilane in bulk?
Yes, Molekula can supply tetraethoxysilane in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a tetraethoxysilane order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.