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87682

Tetramethyl orthosilicate

purum, ≥98.0% (GC)

Synonym(s):

Tetramethoxysilane

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About This Item

Linear Formula:
Si(OCH3)4
CAS Number:
681-84-5
Molecular Weight:
152.22
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
329769595
EC Number:
211-656-4
Beilstein/REAXYS Number:
1699658
MDL number:
MFCD00008341

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Product Name

Tetramethyl orthosilicate, purum, ≥98.0% (GC)

InChI key

LFQCEHFDDXELDD-UHFFFAOYSA-N

InChI

1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3

SMILES string

CO[Si](OC)(OC)OC

vapor density

5.25 (vs air)

vapor pressure

13 hPa ( 20 °C)

grade

purum

assay

≥98.0% (GC)

form

liquid

refractive index

n20/D 1.368 (lit.)
n20/D 1.368

bp

121-122 °C (lit.)

mp

−4 °C (lit.)

density

1.023 g/mL at 25 °C (lit.)

Quality Level

200

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Show Differences

1 of 4

This Item
218472341436131903
Tetramethyl orthosilicate purum, ≥98.0% (GC)

Sigma-Aldrich

87682

Tetramethyl orthosilicate

Tetramethyl orthosilicate 98%

Sigma-Aldrich

218472

Tetramethyl orthosilicate

Tetramethyl orthosilicate ≥99%

Sigma-Aldrich

341436

Tetramethyl orthosilicate

Tetraethyl orthosilicate reagent grade, 98%

Sigma-Aldrich

131903

Tetraethyl orthosilicate

grade

purum

grade

-

grade

-

grade

-

assay

≥98.0% (GC)

assay

98%

assay

≥99%

assay

98%

form

liquid

form

liquid

form

liquid

form

liquid

mp

−4 °C (lit.)

mp

−4 °C (lit.)

mp

−4 °C (lit.)

mp

-

density

1.023 g/mL at 25 °C (lit.)

density

1.023 g/mL at 25 °C (lit.)

density

1.023 g/mL at 25 °C (lit.)

density

0.933 g/mL at 20 °C (lit.)

vapor density

5.25 (vs air)

vapor density

5.25 (vs air)

vapor density

5.25 (vs air)

vapor density

7.2 (vs air)

Application

Used in the sol-gel synthesis of chromium-doped silicates and in the formation of hexagonal mesoporous silica layers.

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

78.8 °F - closed cup

flash_point_c

26 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ3268
BCCF9753
BCCB0710
BCBZ5464
BCBW8878

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Zian Lin et al.
Chemical communications (Cambridge, England), 47(34), 9675-9677 (2011-07-30)
An inorganic-organic hybrid affinity monolithic column was synthesized by a novel "one-pot" approach. The resulting hybrid affinity monoliths have potential applications in specific recognition and enrichment of glycoproteins.
Stephan Altmaier et al.
Journal of separation science, 31(14), 2551-2559 (2008-07-12)
Silica-based monolithic columns were prepared for HPLC with systematic variations of the tetramethoxysilane (TMOS) and polyethylene oxide (PEO) content as reactants in a sol-gel process accompanied by phase separation. The resulting monoliths showed differences in the macropore and silica skeleton
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.
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)
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
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