Octadecyltrimethoxysilane
Synonym(s):Octadecyltrimethoxysilane
- CAS NO.：3069-42-9
- Empirical Formula: C21H46O3Si
- Molecular Weight: 374.67
- MDL number: MFCD00043060
- EINECS: 221-339-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:52
What is Octadecyltrimethoxysilane?
Chemical properties
Colorless transparent liquid
The Uses of Octadecyltrimethoxysilane
For preparing hydrophobic coatings and self-assembled monolayers.
The Uses of Octadecyltrimethoxysilane
OTS is used for the development of self assembled monolayers(SAMs). OTS is also used to modify the silica dielectric surface in organic field effect transistors.
What are the applications of Application
Trimethoxy(octadecyl)silane is for preparing hydrophobic coatings and self-assembled monolayers
General Description
Trimethoxy(octadecyl)silane (OTS) is an important alkylsilane that can form strong covalent bonds with silicon oxide and serves as a potential lubricant for micro electro mechanical systems (MEMS). OTS is largely used for surface chemical modification, modifying silica resulted in an increased charge carrier mobility for a variety of vacuum deposited and solution cast organic semiconductors.
Properties of Octadecyltrimethoxysilane
| Melting point: | 16-17 °C(lit.) |
| Boiling point: | 170 °C (0.1 mmHg) |
| Density | 0.883 g/mL at 25 °C(lit.) |
| vapor pressure | 0.001Pa at 25℃ |
| refractive index | n |
| Flash point: | 284 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Slightly) |
| form | liquid |
| Specific Gravity | 0.883 |
| color | Colourless |
| Water Solubility | 190-437000ng/L at 20℃ |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 5791830 |
| Stability: | Stable. Incompatible with strong oxidizing agents. Moisture sensitive. |
| CAS DataBase Reference | 3069-42-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Octadecyltrimethoxysilane(3069-42-9) |
| EPA Substance Registry System | Silane, trimethoxyoctadecyl- (3069-42-9) |
Safety information for Octadecyltrimethoxysilane
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for Octadecyltrimethoxysilane
| InChIKey | SLYCYWCVSGPDFR-UHFFFAOYSA-N |
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