Triethoxy(octyl)silane
ALDRICH/440213 - 97%
Synonym: Octyltriethoxysilane
CAS Number: 2943-75-1
Empirical Formula (Hill Notation): C14H32O3Si
Molecular Weight: 276.49
EC Number: 220-941-2
MDL Number: MFCD00039883
Linear Formula: CH3(CH2)7Si(OC2H5)3
Product Type: Chemical
| assay | 97% |
| bp | 84-85 °C/0.5 mmHg (lit.) |
| density | 0.88 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C14H32O3Si/c1-5-9-10-1 |
| InChI key | MSRJTTSHWYDFIU-UHFFFAOYSA |
| refractive index | n |
| SMILES string | CCCCCCCC[Si](OCC)(OCC)OCC |
| Application: | Aluminium alloy can be coated with TEOS and 1H, 1H, 2H, 2H perfluorooctyl trichloro silane (PFOTS) to obtain superhydrophobicity with a high contact angle of 160-170° for vessel hulls and marine systems. It may be used to stabilize the porosity for a colorimetric sensor for immediate color changes, which finds potential application in the detection of toxic gases. It may also be used in the production of hybrid zeolites. |
| Application: | Triethoxy(octyl)silane may be used to prepare several formulations for fabricating low-cost, colorimetric sensor arrays to detect toxic gases. |
| General description: | Triethoxy(octyl)silane (TEOS) is an alkoxide organosilane with four ethyl ester sidechains. It is used as a self-assembled monolayer and provides a hydrophobic coating with low surface energy. The water contact angle is in the range of 150-170°. |
| Packaging: | 1 L in Sure/Seal™ |
| Packaging: | 100 mL in Sure/Seal™ |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 212.0 °F - closed cup |
| Flash Point(C) | 100 °C - closed cup |
| Purity | 97% |
| bp | 84-85 °C/0.5 mmHg (lit.) |
| Density | 0.88 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |