Tetraethyl Orthosilicate TEOS Crosile® Si28 Si32 Si40

Tetraethyl orthosilicate, also known as tetraethoxysilane (TEOS), is an organic compound denoted by the formula Si(OC2H5)4. This colorless liquid undergoes degradation when exposed to water. TEOS serves as the ethyl ester of orthosilicic acid, Si(OH)4, and is widely recognized as the predominant silicon alkoxide. 

  • Item NO.:

    TEOS Silane
  • Chemical Name:

    Tetraethyl orthosilicate
  • Chemical Formula:

    C2H6O3SI
  • CAS No.:

    78-10-4,11099-06-2,68412-37-3
  • Properties:

    Colorless transparent liquid; Soluble in a variety of organic solvents; Easy to hydrolysis; Able for condensation to form polysiloxanes; Easy to polymerize in the presence of overheating, light and peroxide.

Tetraethyl Orthosilicate (TEOS) Crosile® SI28, 32, 40 

 

Chemical Properties

Ethyl silicate, formally referred to as tetraethyl orthosilicate or tetraethoxysilane (TEOS), is an organic chemical compound represented by the formula Si(OC2H5)4. It exists in the form of a colorless liquid and can deteriorate upon contact with water. TEOS functions as the ethyl ester of orthosilicic acid, Si(OH)4, and is renowned as the most abundant silicon alkoxide. 

 

Equivalent type
Ethyl silicate, TEOS, Tetraethoxysilanemincolorlessliq, Tetraethoxysilane, Silicon ethoxide, Tetraethoxysilan, Silicon tetraethoxide, Silane Coupling Agent Si, Teraethoxysilane, Silicic acid, ethyl ester, Ethyl polysilicate, Ethyl Silicate, ethoxy(oxo)silanol, diethoxy(oxo)silane, Ethyl silicate28, tetraethyl orthosilicate,Silquest TEOS,Z 669,Silikat TES 28

 

Specifications

Test Item

Target Values(Spec, Limits)

Appearance

Colorless Transparent Liquid

Chemical name

Crosile® SI28

Crosile® SI32

Crosile® SI40

SiO2 Content

28%

32%

40%

Flash Point

181°C 38°C Min.62°C

Boiling Point

169°C

96°C

160°C

Refractive Index

1.3830

1.00

1.397

 

Application

TEOS, or tetraethyl orthosilicate, is a versatile compound with various applications. It is commonly used as a crosslinking agent in silicone polymers and as a precursor to silicon dioxide in the semiconductor industry. TEOS is also utilized as a source of silica for synthesizing certain zeolites. Additionally, it finds use in coatings for carpets and other objects, as well as in the production of aerogel. These applications take advantage of the reactivity of the Si-OR bonds present in TEOS.

Furthermore, TEOS has a historical application as an additive in alcohol-based rocket fuels, significantly reducing heat flux in regeneratively cooled engines by over 50%. In the steel casting industry, TEOS serves as an inorganic binder and stiffener for creating silica-based ceramic molding forms. It can also be used as an inorganic binder for coatings, providing water, oxygen, and high-temperature resistance to materials like steel, glass, brass, and even wood. TEOS acts as an additive in solid polymers, enhancing adhesiveness to glass, steel, or wood surfaces. Moreover, it acts as a binder for porcelain teeth crowns and serves as a precursor to siloxanes, further expanding its range of applications.

  • Adhesion promoter for paints & coatings
  • Precision casting materials and ceramic materials
  • Silicone rubber cross-linking agent.

Tetraethyl Orthosilicate (TEOS) Crosile® SI28,32,40 

 

Packing:

16 kg /drum, 180 kg /drum.

 

Storage:

Kept in a low temperature, dry and ventilated place, avoid direct sunlight.

 

Shelf life:

One year in a ventilating, cool and dry area.

Leave A Message
If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.
Related Products
Tetraethyl Orthosilicate 32
Ethyl Polysilicate TEOS Crosile® SI32
Ethyl silicate is also known as tetraethyl silicate and tetraethoxysilane. Colorless transparent liquid with special odor.
Read More
ECOPOWER Tetraethyl Orthosilicate si50
Ethyl Silicate TEOS Crosile® SI50
Tetraethyl Orthosilicate Crosile® SI50 is a colorless or pale-yellow transparent liquid at room temperature, with a taste similar to ether.
Read More
ECOPOWER Tetraethyl Orthosilicate
Tetraethyl Orthosilicate TEOS Crosile® SI28
Crosile® SI28 is a monomeric ethyl silicate, also known as tetraethyl orthosilicate (TEOS). After hydrolysis, it yields 28 wt.% silica, hence the name Ethyl Silicate-28. It has the following chemical formula.
Read More
tetraethyl orthosilicate Si40
Teraethoxysilane TEOS Crosile® SI40
Ethyl silicate Crosile® SI40 is an organic silicon compound with good solubility, stability and weather resistance, which is widely used in building materials, coatings, paints, cosmetics, electronic materials, plastics and other fields. 
Read More
Aminopropyltriethoxysilane
Amino Silane Coupling Agent Crosile® 540
Amino Silane Crosile® 540:gamma-aminopropyltriethoxysilane, a versatile amino-functional coupling agent may be an excellent candidate for use in a range of broad applications to provide superior bonding between inorganic substrates and organic polymers.  
Read More
Silica manufacturer
Ecoreinfoce 300
The white powder forms ultrafine silica dioxide through a specific manufacturing process. tcan be dissolved by sodium hydroxide andhydrogen fluoride, but not by other acids, water, or organic solvents.
Read More
ECOPOWER C5 Aliphatic Hydrocarbon Resin
C5 Aliphatic Hydrocarbon Resin HC-1102 for Solvent Based Pressure Sensitive Adhesive
HC-1102 is pure C5 aliphatic hydrocarbon resin. It’s designed for Solvent based pressure sensitive adhesive(SBPSA), especially for NR and IIR SBPSA.
Read More
Diaminofunctional silane
Diaminofunctional Silane Polymer Crosile® 5246
Diaminofunctional Silane Polymer Crosile® 5246 is used in adhesives, sealants and coatings to improve the adhesion of amino reactive resins to inorganic surfaces, plastic surfaces and inorganic fillers.
Read More
Get In Touch .
Get In Touch

click here to leave a message

Leave A Message
If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.

Home

Products

Email

whatsapp