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Product Code:SP201

Product Name:Phenyltrimethoxysilane

Product Introduction:

Manufactured via alcoholysis process, this product is synthesized under controlled temperature and then purified by rectification to remove impurities and by-products. It features high purity and consistent batch quality. At room temperature, it is a colorless transparent liquid. Its molecules contain phenyl and trimethoxy functional groups, endowing the product with excellent heat resistance, weather resistance and high reactivity. It delivers fast hydrolysis rate and high crosslinking & curing efficiency. As a high-end organosilicon intermediate, it is mainly used for synthesizing phenyl silicone resins and modified silicone oils. It also serves as a surface treatment agent for inorganic fillers and silane coupling agent, and is widely applied in electronic encapsulation, weather-resistant coatings and polymer composite materials.

Basic Information

  • Chinese name:一苯基三甲氧基硅烷
  • CAS number:[2996-92-1]
  • Molecular formula:C₉H₁₄O₃Si

Structural formula

Physical properties

  • Molecular weight:198
  • Relative Density(25℃):1.06 g/ml
  • Flash Point(CC):86℃
  • Boiling Point:211℃
  • Melting Point:-25℃
  • Refractive index nD201.4680

Product standard

  • HG/T5153-2017

Technical indicators

Project Indicator
Appearance Colorless transparent fluid
Purity, % ≥99.0
Free Chlorine, w/% ≤0.0030
Relative Density (20℃)/(g/cm³) 1.062-1.072
Refractive Index nD²⁵ 1.4650-1.4750

Characteristic advantages

  • Better heat-resistance
  • Has good thermal stability and flexibility
  • Resistance to chemical corrosion
  • With superior electric insulation property

Application field

  • Surface treating agent.
  • Improves the thermal stability of other silanes.
  • Used as a catalyst.
  • As a crosslinking agent for silicone resin, it can also be used as a raw material for phenyl silicone oil.
  • In the field of automobile manufacturing, as anexcellent coating additive, automotive glass ismanufactured.

Safe handling

  • Wear eye protection and protective gloves as required while handing the product.
  • Use the product in a well ventilated area.
  • Please consult our MSDS.

Use storage

  • When stored in its original container below 40°C and unopen, the shelf life is 2 years. It can still be used after re-inspection.
  • Store in a cool and dry place out of direct sunlight.
  • Keep out of the reach of children.

Packaging Information

  • Available in 25KGS drum, 200KGS drum or 1000KGS drum.