3-Mercaptopropyltrimethoxysilane

CAS# 4420-74-0

Product Description

3-Mercaptopropyltrimethoxysilane is a chemical compound with various industrial applications.

Product:

3-Mercaptopropyltrimethoxysilane

CAS:

4420-74-0

Synonym:

3-(Trimethoxysilyl)-1-propanethiol

Structure:

Typical Characteristics

Appearance

Colorless liquid

Boiling point

213-215 °C

Density

1.057 g/cm3

Flash Point

95 °C

Melting point

<-50 °C

Molecular Weight

196.34

Odor

Slightly mercaptan odor

Purity

95%

Refractive index

1.444

get a quote

We Offer 3-Mercaptopropyltrimethoxysilane
in various grades

A few of the grades available are listed below:

3-Mercaptopropyltrimethoxysilane used in many
industry applications

3-Mercaptopropyltrimethoxysilane is a chemical compound with various industrial applications. Here are some of its uses:

  1. Adhesion Promoter: 3-Mercaptopropyltrimethoxysilane is commonly used as an adhesion promoter in coatings, adhesives, and sealants. It enhances the bonding strength and durability of these formulations on various substrates, including metals, glass, ceramics, and plastics.
  2. Coupling Agent: 3-Mercaptopropyltrimethoxysilane acts as a coupling agent in composite materials and reinforced plastics. It improves the adhesion between organic polymers and inorganic fillers or reinforcements, such as glass fibers or mineral particles, resulting in composites with enhanced mechanical properties.
  3. Surface Modifier: 3-Mercaptopropyltrimethoxysilane can be used to modify the surface properties of materials, such as silica, metal oxides, and minerals. It enables the attachment of functional groups onto surfaces, imparting desired properties such as improved wettability, dispersibility, and compatibility with organic matrices.
  4. Corrosion Protection: 3-Mercaptopropyltrimethoxysilane is employed as a corrosion inhibitor in coatings and surface treatments for metals. It forms a protective film or barrier on metal surfaces, reducing their susceptibility to corrosion by inhibiting the interaction with corrosive agents such as moisture and chemicals.
  5. Self-Assembled Monolayers (SAMs): 3-Mercaptopropyltrimethoxysilane can form self-assembled monolayers on metal and oxide surfaces. These monolayers provide functional groups for further chemical modification and are used in nanotechnology, sensor development, and surface science.
  6. Nanoparticle Stabilizer: 3-Mercaptopropyltrimethoxysilane can be used as a stabilizer for nanoparticles, such as gold nanoparticles. It adsorbs onto the nanoparticle surface and provides steric and electrostatic stabilization, preventing aggregation and maintaining the colloidal stability of nanoparticle dispersions.
  7. Surface Functionalization: 3-Mercaptopropyltrimethoxysilane is used for surface functionalization of nanoparticles, quantum dots, and nanocomposites. It allows the attachment of functional groups or ligands onto nanoparticles, enabling applications such as drug delivery, catalysis, and sensing.