Tetraethyl orthosilicate, Tetraethoxysilane, 99%,

CAS Number: 78-10-4

Molecular Formula: SiC8H20O4

Molecular Weight: 208.33

IUPAC Name: Tetraethoxysilane

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Tetraethyl orthosilicate is the chemical compound with the formula Si(OC2H5)4. Often abbreviated TEOS, this molecule consists of four ethyl groups attached to SiO44− ion, which is called orthosilicate. As an ion in solution, orthosilicate does not exist. Alternatively TEOS can be considered to be the ethyl ester of orthosilicic acid, Si(OH)4. It is a prototypical alkoxide. TEOS is mainly used as a crosslinking agent in silicone polymers and as a precursor to silicon dioxide in the semiconductor industry. TEOS is also used as the silica source for synthesis of zeolites. Other applications include coatings for carpets and other objects. TEOS is used in the production of aerogel. These applications exploit the reactivity of the Si-OR bonds.

 
Data sheet
Chemical purity99%
Molecular FormulaSiC8H20O4
Molecular Weight208.33

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Tetraethyl orthosilicate, Tetraethoxysilane, 99%,

CAS Number: 78-10-4

Molecular Formula: SiC8H20O4

Molecular Weight: 208.33

IUPAC Name: Tetraethoxysilane

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