N-Octadecyltrimethoxysilane-Cas No: 3069-42-9


  • CasNo.: 3069-42-9

  • Packing: 200L or IBC drum

  • Origin: China

  • Chemical Properties: Check More

  • TDS Download
AppearanceColorless Transparent Liquid
Refractive Index(n25D)1.4340-1.4440
Density0.883 g/mL at 25 °C(lit.)
Melting Point16-17 °C(lit.)
Molecular FormulaC21H46O3Si
Molecular Weight374.67
StabilityIncompatible with strong oxidizing agents. Moisture sensitive.


  1. Mainly be used to deal with inorganic materials, e.g. glass, silica, Al2O3, Kaolin, pottery and porcelain, mica, SiC, talcum powder etc., in order to improve the property of blending with organic matter and water-proof,enhancing the mechanical property of the products.
  2. Fog-proof Preparation of Glass a) Protect blank glass and coated glass (optical anti-reflex coating, vacuum anti-reflex coating, reflective coating) b) Protect optical parts orprecision instrument with graduations and metal frames.
  3. Protect Historical Relics or Other Products from Water,Protect historical relics (esp. outdoor historical relics) from corrosion, freeze or efflorescence.


N-Octadecyltrimethoxysilane Cas No: 3069-42-9

chemicals manufactory of china

chemicals manufactory of china



SIPX manufactory of China

Q:What’s the Minimum Order Quantity of N-Octadecyltrimethoxysilane?
A: 1000KG

Q: How to Get Sample of N-Octadecyltrimethoxysilane?
A: Sample within 500g could be sent for free once buyer’s DHL account is advised for freight collect or courier cost is paid. The courier cost could be deducted when bulk order is placed.

Q: What is Lead Time of Cas No: 3069-42-9?
A: Generally, cargo could be loaded on ship in about two weeks after the date of receiving prepayment or L/C. Sometimes one week earlier or later.

Q: What’s the bulk Packing of N-Octadecyltrimethoxysilane?
A: 200L or IBC drum packing