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333859 Aldrich

Tetraethyl orthosilicate

99.999% trace metals basis

Synonym: Orthosilicic acid tetraethyl ester, Silicon tetraethoxide, TEOS, Tetraethoxysilane, Tetraethoxysilicon(IV), Tetraethyl silicate


Related Categories Chemical Synthesis, Materials Science, Micro/NanoElectronics, Organometallic Reagents, Organosilicon,
vapor density   7.2 (vs air)
vapor pressure   <1 mmHg ( 20 °C)
assay   99.999% trace metals basis
form   liquid
refractive index   n20/D 1.382(lit.)
bp   168 °C(lit.)
density   0.933 g/mL at 20 °C(lit.)



Commonly used as a precursor to prepare xerogel1,2

Will interact with dodecylamine in the formation of intercalation compounds of H+-magadiite and used in a study of mixed-metal bioactive glasses.

General description

Atomic number of base material: 14 Silicon


25, 100 mL in glass bottle

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

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