Hexadecyltrimethoxysilane
ALDRICH/52360 - technical, ≥85% (GC)
Synonym: Trimethoxyhexadecylsilane
CAS Number: 16415-12-6
Empirical Formula (Hill Notation): C19H42O3Si
Molecular Weight: 346.62
EC Number: 240-464-3
MDL Number: MFCD00069149
Linear Formula: H3C(CH2)15Si(OCH3)3
Product Type: Chemical
| assay | ≥85% (GC) |
| density | 0.89 g/mL at 20 °C (lit.) |
| form | liquid |
| grade | technical |
| impurities | isomers |
| InChI | 1S/C19H42O3Si/c1-5-6-7-8- |
| InChI key | RSKGMYDENCAJEN-UHFFFAOYSA |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | CCCCCCCCCCCCCCCC[Si](OC)( |
| Application: | Hexadecyltrimethoxysilane can be used as: • A hydrophobic modifier to modify silica nanoparticles, enabling the creation of superhydrophobic particles and composites, which are ideal for applications in coatings and textiles. • A key component in the fabrication of durable, fluorine-free superhydrophobic coatings by modifying halloysite nanotubes embedded in silicone-acrylic polymer films. • An additive in the development of hydrophobic aerogels based on nanocellulose, where HDTMS contributes to the creation of materials with high oil adsorption capacities. |
| Features and Benefits: | • Thermally Stable: Suitable for high-temperature applications and thermal curing processes. • Moisture-Sensitive: Hydrolyzes in the presence of water to form reactive silanol groups that bond covalently to surfaces. • Long Alkyl Chain: Provides excellent surface hydrophobicity due to its high surface energy barrier. |
| Packaging: | 100, 500 mL in glass bottle |
| 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) | 247.1 °F |
| Flash Point(C) | 119.5 °C |
| Purity | ≥85% (GC) |
| Density | 0.89 g/mL at 20 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |