Tetraethyl orthosilicate(TEOS),also Tetraethyl silicate is the chemical compound with the formula Si(OC2H5)4. Often abbreviated TEOS, it is a colorless liquid that degrades in water. TEOS is 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.
CAS:78-10-4
Molecular Formula: C8H20O4Si
Formula Weight:208.33
from:Acridine Raw Material
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