Tetra-n-butoxysilane
tetrabutyl orthosilicate
CAS: 4766-57-8
Molecular Formula: C16H36O4Si
Tetra-n-butoxysilane - Names and Identifiers
| Name | tetrabutyl orthosilicate |
| Synonyms | Tetrabutylsilicate Silicon n-butoxide Tetra-n-butoxysilane tetrabutyl orthosilice tetrabutyl orthosilicate Orthosilicic acid tetrabutyl ester Tetra-n-butoxysilane(Tetrabutylorthosilicate) |
| CAS | 4766-57-8 |
| EINECS | 225-305-8 |
| InChI | InChI=1/C16H36O4Si/c1-5-9-13-17-21(18-14-10-6-2,19-15-11-7-3)20-16-12-8-4/h5-16H2,1-4H3 |
Tetra-n-butoxysilane - Physico-chemical Properties
| Molecular Formula | C16H36O4Si |
| Molar Mass | 320.54 |
| Density | 0.899 g/mL at 25 °C (lit.) |
| Melting Point | -80 °C |
| Boling Point | 275 °C (lit.) |
| Flash Point | 174°F |
| Water Solubility | reacts |
| Vapor Presure | 0.00877mmHg at 25°C |
| Vapor Density | >1 (vs air) |
| Appearance | liquid |
| Specific Gravity | 0.9 |
| Color | colorless |
| BRN | 1709274 |
| Storage Condition | Sealed in dry,Room Temperature |
| Sensitive | 7: reacts slowly with moisture/water |
| Refractive Index | n20/D 1.413(lit.) |
| MDL | MFCD00009432 |
Tetra-n-butoxysilane - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN2924 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29209090 |
| Hazard Class | 8 |
| Packing Group | III |
Tetra-n-butoxysilane - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| category | toxic substances |
| flammability hazard characteristics | open flame is combustible; silicide smoke is emitted from the fire site |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food and oxidant storage and transportation |
| fire extinguishing agent | foam, dry powder, carbon dioxide |
Last Update：2024-04-10 22:29:15
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