Trimethoxy(octyl)silane
ALDRICH/376221 - 96%
Synonym: Octyltrimethoxysilane
CAS Number: 3069-40-7
Empirical Formula (Hill Notation): C11H26O3Si
Molecular Weight: 234.41
EC Number: 221-338-7
MDL Number: MFCD00043053
Linear Formula: CH3(CH2)7Si(OCH3)3
Product Type: Chemical
| assay | 96% |
| density | 0.907 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C11H26O3Si/c1-5-6-7-8- |
| InChI key | NMEPHPOFYLLFTK-UHFFFAOYSA |
| refractive index | n |
| SMILES string | CCCCCCCC[Si](OC)(OC)OC |
| Application: | Trimethoxy(octyl)silane (TMOS) is used to functionalize the surface of silica to promote the adhesion with gold nanoparticles (AuNPs) for use in the fabrication of acrylate nanocomposite based photonic devices. It can be coated on silica fiber based epoxy to improve the hydrophobic characteristics and to protect the surface from corrosion. |
| Application: | Trimethoxy(octyl)silane was used for the silanization of silica nanoparticles. Surface modification of hydrophobic (T805) titania particles with the silane was reported. |
| General description: | Trimethoxy(octyl)silane (TMOS) is an organosilane that is used as a coupling and surface modifying agent to enhance the water contact angle and lower the surface energy. |
| General description: | Trimethoxy(octyl)silane is an organosilane. The effect of hydrolyzed silane on the penetration of water into a lamellar liquid crystal was studied. |
| Packaging: | 25 mL in glass bottle |
| Symbol |  GHS06 |
| Signal word | Danger |
| Hazard statements | H315 - H331 |
| Precautionary statements | P261 - P264 - P271 - P280 - P302 + P352 - P304 + P340 + P311 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 203.0 °F - closed cup |
| Flash Point(C) | 95 °C - closed cup |
| Purity | 96% |
| Density | 0.907 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |