Tetraethyl Orthosilicate

Siwin-TEOS

Tetraethyl Orthosilicate/Tetraethoxysilane

Description:

Tetraethyl Orthosilicate, also known as tetraethoxysilane (TEOS), has the chemical formula (C2H5O)4Si or Si(OC2H5)4, with a molecular weight of 208.33

Physical Properties:

At room temperature, Tetraethyl Orthosilicate is a colorless transparent liquid with a special odor or pungent smell.

It is insoluble in water but soluble in organic solvents such as alcohol and ether, and slightly soluble in benzene.

Siwin-TEOS Tetraethyl Orthosilicate is stable in the absence of water but decomposes into ethanol and silicic acid when exposed to moisture, therefore it becomes turbid in humid air.

It is flammable, and at high concentrations, it can be anesthetic and cause strong irritation to the eyes and respiratory tract.

Typical properties

Application

• Siwin-TEOS Tetraethyl Orthosilicate is widely used in the preparation of heat-resistant and chemical corrosion-resistant coatings, silicone solvents, and organic synthesis.  

  
  

• Tetraethyl Orthosilicate is also a basic raw material for the production of high-grade crystals, optical glass treatment agents, adhesives, and insulating materials in the electronics industry.  

  
  

• In the semiconductor industry, electronic grade Siwin-TEOS Tetraethyl Orthosilicate is extensively applied in chemical vapor deposition processes to form silicon dioxide deposition films, preventing contaminants and impurities from entering semiconductor components.

  
  

• Tetraethyl orthosilicate (TEOS) is a commonly used silicon source, mainly used for the preparation of SiO2 aero gels, and is widely applied in the fields of electronics, coatings, glass, and ceramics.

  
  

  Coatings and solvents:  

• Siwin-TEOS Tetraethyl Orthosilicate is commonly used in the preparation of heat-resistant and chemical corrosion-resistant coatings, as well as organosilicon solvents.

  
  

  Organic synthesis:

• It can be used as a raw material for organic synthesis, participating in various chemical reactions to produce a variety of organosilicon compounds.

  
  

  Advanced crystal preparation:  

• Siwin-TEOS Tetraethyl Orthosilicate is one of the basic raw materials for preparing high-grade crystals.

  
  

  Optical glass treatment:  

• Siwin-TEOS Tetraethyl Orthosilicate is used as a treatment agent for optical glass to improve its performance.

  
  

  Electronic industry:  

• In the electronics industry, tetraethyl orthosilicate is used to prepare insulating materials.

  
  

• Building materials: As an adhesion promoter, Siwin-TEOS Tetraethyl Orthosilicate is used to manufacture unfired silicate ceramics, acid-resistant coatings, and to reinforce natural or artificial stones and concrete products.

  
  

• Environmental protection materials: Siwin-TEOS Tetraethyl Orthosilicate reacts with methyltriethoxysilane, etc., to prepare building materials that are moisture-resistant, fireproof, and frost-resistant.

  
  

• Medicine and biotechnology: Siwin-TEOS Tetraethyl Orthosilicate is used to prepare epoxy resin microcapsules, which have excellent thermal stability and storage stability, and are non-toxic and harmless.

  
  

Package & Storage

190KG drums, 950kg IBC drum

Store tightly at room temperature in dry shadow place, avoid contact with alkali and acid , away from fire source.