376213

Trimethoxy(octadecyl)silane

technical grade

• Sinónimos: Octadecyltrimethoxysilane
• Fórmula lineal: CH₃(CH₂)₁₇Si(OCH₃)₃
• Número de CAS: 3069-42-9
• Peso molecular: 374.67
• Beilstein/REAXYS Number: 5791830
• EC Number: 221-339-2
• MDL number: MFCD00043060
• UNSPSC Code: 12352103
• PubChem Substance ID: 24863428
• NACRES: NA.23

Propiedades

• grade: technical grade
• Quality Level: 100
• form: liquid
• refractive index: n20/D 1.439 (lit.)
• mp: 16-17 °C (lit.)
• density: 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
• InChI key: SLYCYWCVSGPDFR-UHFFFAOYSA-N

Descripción

General description

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.

Application

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.

Información de seguridad

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 284.0 °F - closed cup
• flash_point_c: 140 °C - closed cup
• ppe: Eyeshields, Gloves, type ABEK (EN14387) respirator filter