218472
Tetramethyl orthosilicate
98%
Synonym(s):
Tetramethoxysilane
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About This Item
Linear Formula:
Si(OCH3)4
CAS Number:
Molecular Weight:
152.22
Beilstein:
1699658
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23
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vapor density
5.25 (vs air)
Quality Level
vapor pressure
13 hPa ( 20 °C)
Assay
98%
form
liquid
refractive index
n20/D 1.368 (lit.)
bp
121-122 °C (lit.)
mp
−4 °C (lit.)
density
1.023 g/mL at 25 °C (lit.)
SMILES string
CO[Si](OC)(OC)OC
InChI
1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3
InChI key
LFQCEHFDDXELDD-UHFFFAOYSA-N
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Application
Tetramethyl orthosilicate (TMOS) is popularly used in the sol-gel synthesis of silicates1 and chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.
Used in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 1 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
78.8 °F - closed cup
Flash Point(C)
26 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Yun Tian et al.
Electrophoresis, 29(4), 960-970 (2008-01-24)
A novel calix[4] open-chain crown ether (p-tert-butylcalix[4]arene-1,3-bis(allyloxyethy) ether)-modified, organic-inorganic hybrid silica-based monolithic column possessing vinyl ligands for CEC is described. The monolithic silica matrix containing a vinyl functionality was synthesized by in situ cocondensation of tetramethoxysilane (TMOS) and vinyltrimethoxysilane (VTMS)
Yonghao Xiu et al.
Journal of colloid and interface science, 326(2), 465-470 (2008-07-29)
A method for the preparation of inorganic superhydrophobic silica coatings using sol-gel processing with tetramethoxysilane and isobutyltrimethoxysilane as precursors is described. Incorporation of isobutyltrimethoxysilane into silica layers resulted in the existence of hydrophobic isobutyl surface groups, thereby generating surface hydrophobicity.
Shota Miyazaki et al.
Journal of chromatography. A, 1218(15), 1988-1994 (2010-12-24)
Chromatographic properties of a new type of monolithic silica rod columns were examined. Silica rod columns employed for the study were prepared from tetramethoxysilane, modified with octadecylsilyl moieties, and encased in a stainless-steel protective column with two polymer layers between
Carmen Carrasquilla et al.
Journal of the American Chemical Society, 134(26), 10998-11005 (2012-06-26)
Structure-switching, fluorescence-signaling DNA and RNA aptamers have been reported as highly versatile molecular recognition elements for biosensor development. While structure-switching DNA aptamers have been utilized for solid-phase sensing, equivalent RNA aptamers have yet to be successfully utilized in solid-phase sensors
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Journal of chromatography. A, 1217(36), 5737-5740 (2010-08-03)
The temperature effects during the sol-gel process and ageing of the silica-based monolith on the structure and separation efficiency of the capillary columns (100microm i.d., 150mm) for HPLC separations were studied. The tested columns were synthesized from a mixture of
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