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Triethoxysilane

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Identification
Molecular formula
C6H16O3Si
CAS number
998-30-1
IUPAC name
triethoxysilane
State
State

At room temperature, triethoxysilane is a liquid. It remains in this state under standard atmospheric conditions.

Melting point (Celsius)
-78.00
Melting point (Kelvin)
195.15
Boiling point (Celsius)
135.00
Boiling point (Kelvin)
408.15
General information
Molecular weight
178.29g/mol
Molar mass
178.2880g/mol
Density
0.8810g/cm3
Appearence

Triethoxysilane is a colorless liquid. It has a characteristic ethereal odor, which is common among organic silicon compounds. The liquid is typically transparent and has a watery consistency.

Comment on solubility

Solubility of Triethoxysilane

Triethoxysilane, with the chemical formula Si(C2H5O)3, is a versatile compound known for its interesting solubility properties. Understanding its solubility can be crucial in various applications including adhesives, sealants, and surface modifications. Here are some key points regarding its solubility:

  • Polar vs. Nonpolar Solvents: Triethoxysilane is generally soluble in polar organic solvents such as alcohols and ethers due to its ethoxy groups.
  • Water Solubility: While triethoxysilane is not soluble in water, it can hydrolyze in the presence of moisture, leading to the formation of silanol groups. This behavior can enhance its reactivity.
  • Hydrolysis Reaction: Upon hydrolysis, triethoxysilane can form silanol and ethanol:
    Si(C2H5O)3 + 3 H2O → Si(OH)4 + 3 C2H5OH.
  • Concentration Matters: The solubility in solvents can also depend on the concentration; higher concentrations may lead to phase separation.

In summary, triethoxysilane has a complex solubility profile characterized by its affinity for polar solvents and limited water solubility. Its ability to hydrolyze and react with moisture further expands its utility in chemical processes and materials science.

Interesting facts

Interesting Facts about Triethoxysilane

Triethoxysilane is a fascinating organosilicon compound that plays a crucial role in various industries, particularly in materials science and nanotechnology. This compound is notable for its ability to serve as a silane coupling agent, which enhances the bonding between inorganic materials and organic matrices, thus improving the properties of composite materials.

Applications

  • Adhesives and Sealants: Triethoxysilane is commonly used to modify adhesives and sealants for better adhesion to substrates like glass, metals, and ceramics.
  • Coatings: It is incorporated into coatings to enhance durability and resistance against moisture, chemicals, and mechanical stress.
  • Surface Treatments: This compound is utilized in the treatment of surfaces, providing hydrophobic properties that are beneficial for various applications.
  • Nano-Composite Materials: Triethoxysilane contributes to the fabrication of innovative nano-composites, enhancing their mechanical and thermal properties.

Key Characteristics

Triethoxysilane is characterized by its ability to hydrolyze in the presence of water, a reaction that enables it to form silanol groups that bond with various substrates. This reactivity can be summarized as follows:

  • Hydrolysis: The compound reacts with moisture, leading to the formation of silanol groups.
  • Covalent Bonding: The silanol groups allow for the creation of strong covalent bonds with substrates.

A Quote to Remember

As a prominent figure in the field of materials science stated, "The key to enhancing material performance lies in understanding and manipulating the interfaces between different materials."

Overall, triethoxysilane exemplifies the importance of silanes in modern chemistry and their vast potential for enhancing material properties across various applications. As scientists continue to explore its capabilities, this compound shines a light on the intersection of organic and inorganic chemistry.

Synonyms
hydridotriethoxysilane
Triethoxisilane
triethoxy silane
triethoxy-silane
Triethoxysilane, 95%
(EtO)3SiH
HSi(OEt)3
NS00042617
Q1100789