TEOS Full Name | TEOS Full Form

The TEOS full name in Chemistry is Tetraethyl orthosilicate (CAS No 78-10-4). The other TEOS full form are ethyl silicate, silicic acid tetraethyl ester, silicon ethoxide, tetraethyl silicate, tetraethoxysilane.

TEOS is the ethyl ester of orthosilic acid Si(OH)₄

TEOS chemical structure

TEOS Chemical Structure

Properties of TEOS

Chemical formula	SiC8H20O4
TEOS Molecular weight (molar mass)	208.33 gmol−1
Appearance	Colorless liquid
Density of TEOS	0.933 g/mL at 20 °C
Odor	Sharp alcohol or ester like odor
Boling point	68 to 169 °C

 Applications of TEOS

The tetraethyl orthosilicate is used for the following applications

• Chemical vapor deposition, precursor to silicon dioxide in the semiconductor industry
• In catalysis, chemical liquid deposition of TEOS is used as silicon dioxide source to passivate external surface of zeolites to increase the shape selectivity
• In synthesis of some zeolites, TEOS is used as silica source
• Crosslinking agent in silicon polymers
• Coating of carpets
• Production of aerogels

comment below and let me know if this TEOS full form article helped you.