442291

Octadecylsilane

97%

• Synonym(s): Octadecyltrihydridosilane
• Linear Formula: CH₃(CH₂)₁₇SiH₃
• CAS Number: 18623-11-5
• Molecular Weight: 284.60
• EC Number: 242-453-9
• MDL number: MFCD00039874
• UNSPSC Code: 12352103
• PubChem Substance ID: 24867783
• NACRES: NA.22

Properties

• Assay: 97%
• bp: 195 °C/15 mmHg (lit.)
• mp: 29 °C (lit.)
• density: 0.795 g/mL at 25 °C (lit.)
• SMILES string: CCCCCCCCCCCCCCCCCC[SiH3]
• InChI: 1S/C18H40Si/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h2-18H2,1,19H3
• InChI key: YTJSFYQNRXLOIC-UHFFFAOYSA-N

Description

General description

Octadecylsilane is an organosilicon compound that consists of a long-chain hydrocarbon (18 carbons) bonded to a silicon atom through a carbon-silicon bond. It is widely used in various applications due to its high surface activity, making it an excellent adsorbent for non-polar organic compounds. It is also used as a surface modifier or coating agent.

Application

Octadecylsilane can be used as a modifying agent for montmorillonite clay nanoparticles, which are used as a filler material in the synthesis of poly(methyl methacrylate) (PMMA)/silylated montmorillonite composites.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable