376213

Trimethoxy(octadecyl)silan

technical grade

• Synonym(e): Octadecyltrimethoxysilan
• Lineare Formel: CH₃(CH₂)₁₇Si(OCH₃)₃
• CAS-Nummer: 3069-42-9
• Molekulargewicht: 374.67
• Beilstein: 5791830
• EG-Nummer: 221-339-2
• MDL-Nummer: MFCD00043060
• UNSPSC-Code: 12352103
• PubChem Substanz-ID: 24863428
• NACRES: NA.23

Eigenschaften

• Qualität: technical grade
• Qualitätsniveau: 100
• Form: liquid
• Brechungsindex: n20/D 1.439 (lit.)
• mp (Schmelzpunkt): 16-17 °C (lit.)
• Dichte: 0.883 g/mL at 25 °C (lit.)
• SMILES String: CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC
• InChI: 1S/C21H46O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22-2,23-3)24-4/h5-21H2,1-4H3
• InChIKey: SLYCYWCVSGPDFR-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Trimethoxy(octadecyl)silane (OTMS) is an alkyl silane that functionalizes a variety of nanoparticle surfaces and facilitates a hydrophobic coating with a high-water contact angle and low surface energy.

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.

Anwendung

Magnetic nanoparticles (Fe₂O₃) can be surface modified with OTMS. It forms a sorbent for the magnetic solid-phase extraction (MSPE) of endocrine disruptors (organochlorine pesticides) from milk samples. It may form a corrosion protective coating on AZ31 magnesium alloy that finds potential application in automotive industry. It may also be used to form a composite with fly ash that can be coated to achieve a superhydrophobic and UV-protected cotton fabric.

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.

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 1
• Flammpunkt (°F): 284.0 °F - closed cup
• Flammpunkt (°C): 140 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type ABEK (EN14387) respirator filter