| Catalog Number | ACM2943751-11 |
|---|---|
| CAS Number | 2943-75-1 |
| Structure | ![]() |
| Description | Colorless transparent liquid, soluble in a variety of organic solvents. |
| Synonyms | n-Octyltriethoxysilane |
| IUPAC Name | triethoxy(octyl)silane |
| Molecular Weight | 276.49 |
| Molecular Formula | C14H32O3Si |
| Canonical SMILES | CCCCCCCC[Si](OCC)(OCC)OCC |
| InChI | InChI=1S/C14H32O3Si/c1-5-9-10-11-12-13-14-18(15-6-2,16-7-3)17-8-4/h5-14H2,1-4H3 |
| InChI Key | MSRJTTSHWYDFIU-UHFFFAOYSA-N |
| Boiling Point | 98ºC |
| Flash Point | 100ºC |
| Density | 0.88 g/mL at 25 °C(lit.) |
| Solubility | REACTS |
| Application | n-Octyltriethoxysilane serves as a hydrophobization agent primarily used in limiting the coalescence of solid-stabilized emulsions This medium-chain alkylfunctional silane a clear colorless liquid soluble in non-polar organic solvents acts as an effective surface modifier to impart hydrophobic characteristics to materials such as concrete glass inorganic pigments and mineral fillers When mixed with suitable solvents n-Octyltriethoxysilane can be utilized to create water-repellent formulations These formulations when properly applied penetrate and react chemically with cementitious substrates to provide enduring water repellency while maintaining the original appearance of the treated surface By forming a self-assembled monolayer it offers a hydrophobic coating with reduced surface energy achieving a water contact angle typically between 150° and 170° |
| Storage | Must be sealed and kept in cool and ventilated place, away from oxidizing agent, acids. |
| Complexity | 159 |
| EC Number | 220-941-2 |
| Exact Mass | 276.212071g/mol |
| Formal Charge | 0 |
| Heavy Atom Count | 18 |
| Monoisotopic Mass | 276.212071g/mol |
| Packaging | Packed in 25kg and 200kg PVF steel drum or plastic drum. |
| Refractive Index | 1.416-1.418 |
| Rotatable Bond Count | 13 |
Excellent Hydrophobic Agent for Research Applications
I used Alfa Chemistry's n-Octyltriethoxysilane in my research to enhance hydrophobicity on mineral fillers. It delivered consistent results with its easy application and excellent water repellency. Highly effective for stabilizing emulsions too.
※ Please kindly noted that this product is for research use only.