Trimethoxy Octyl Silane | 3069-40-7

Cas No :

3069-40-7

Form :

Liquid 

Molecular Weight :

234.41 G/Mol

Molecular Formula :

C11H26O3SI

Boiling Point :

210 °C

Melting Point :

-60 °C

Flash Point :

65 °C

Solubility :

Insoluble In Water; Soluble In Organic Solvents (Toluene, Xylene, Dichloromethane, Ether)

Description :

Overview of Trimethoxy Octyl Silane

 

Trimethoxy Octyl Silane (Octyltrimethoxysilane) is an organosilicon compound used as a coupling agent, surface modifier, and hydrophobic treatment agent in various industrial applications.

Known for imparting water repellency, improving adhesion, and modifying surface properties, Trimethoxy Octyl Silane is widely used in coatings, construction materials, composites, and specialty chemical formulations.

This compound appears as a colorless to pale yellow liquid. Its octyl chain provides hydrophobicity, while the three methoxy groups enable bonding to inorganic surfaces via siloxane formation.

Related products include Triethoxysilane, Trimethoxysilane, and other functional alkoxysilanes used in surface treatment and materials science.

 

 

Applications of Trimethoxy Octyl Silane

 

Surface Treatment & Coatings

 

  • Used as a hydrophobic treatment agent for concrete and masonry
  • Applied in waterproofing formulations
  • Used in protective coating systems
  • Applied in developing water-repellent surfaces

 

Materials Science & Composites

 

  • Used as a coupling agent in composite materials
  • Applied to improving interfacial adhesion
  • Used in fiber treatment for composites
  • Applied to polymer-inorganic material bonding

 

Industrial Chemical Applications

 

  • Used in manufacturing silane-modified polymers
  • Applied in producing specialty chemicals
  • Used in adhesive and sealant formulations
  • Applied in developing performance materials

 

 

Safety & Handling Guidelines

 

  • FLAMMABLE LIQUID—keep away from ignition sources
  • Avoid inhalation of vapors
  • Use gloves, goggles, and protective clothing
  • Handle in well-ventilated areas
  • Store in tightly closed containers in a cool, dry place
  • Hydrolyzes slowly in moisture—keep containers sealed
  • Keep away from strong acids and oxidizing agents
  • Follow COA and MSDS instructions strictly

 

 

Where to Buy Trimethoxy Octyl Silane?

 

Trimethoxy Octyl Silane Manufacturer

 

ChemicalBull supplies high-purity Trimethoxy Octyl Silane, meeting industrial and technical quality standards.

 

Trimethoxy Octyl Silane Supplier & Distributor

 

  • Available in bulk quantities for industrial use
  • High-purity technical grades
  • COA, MSDS, and specifications provided

 

 

MSDS

 

Includes detailed safety instructions, flammability data, and handling protocols.

 

 

Frequently Asked Questions (FAQs)

 

  1. What are Trimethoxy Octyl Silane uses?

    Used as a hydrophobic surface treatment agent, a water repellent for construction materials, a coupling agent in composites, and in coatings and sealants.

  2. What is Trimethoxy Octyl Silane synthesis?

    Synthesized by reaction of octyltrichlorosilane with methanol, or direct synthesis from octyl Grignard reagent and trimethoxysilane.

  3. What is the molecular formula?

    Molecular formula: C₁₁H₂₆O₃Si with molecular weight 234.40 g/mol.