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253006

Sigma-Aldrich

Methoxytrimethylsilane

99%

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Synonym(s):
Methyl trimethylsilyl ether, Trimethylmethoxysilane
Linear Formula:
CH3OSi(CH3)3
CAS Number:
Molecular Weight:
104.22
Beilstein/REAXYS Number:
1731490
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

assay

99%

form

liquid

refractive index

n20/D 1.366 (lit.)

bp

57-58 °C (lit.)

density

0.756 g/mL at 25 °C (lit.)

SMILES string

CO[Si](C)(C)C

InChI

1S/C4H12OSi/c1-5-6(2,3)4/h1-4H3

InChI key

POPACFLNWGUDSR-UHFFFAOYSA-N

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1 of 4

This Item
376213254371376221
vibrant-m

253006

Methoxytrimethylsilane

vibrant-m

376213

Trimethoxy(octadecyl)silane

vibrant-m

254371

Ethoxytrimethylsilane

vibrant-m

376221

Trimethoxy(octyl)silane

density

0.756 g/mL at 25 °C (lit.)

density

0.883 g/mL at 25 °C (lit.)

density

0.757 g/mL at 25 °C (lit.)

density

0.907 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

bp

57-58 °C (lit.)

bp

-

bp

75-76 °C (lit.)

bp

-

assay

99%

assay

-

assay

98%

assay

96%

form

liquid

form

liquid

form

liquid

form

liquid

General description

Methoxytrimethylsilane (MTMS) is a silylating agent, which is majorly used to provide a hydrophobic surface coating with a high water contact angle and low surface energy.

Application

Effect of chemical modification of diglycidyl bisphenol A based epoxy resin with methyltrimethoxy silane (MTMS) was studied. 1 It was used to quench lab ware with MTMS while handling HF/pyridine.{90}
Superhydrophobic recycled polyethylene terephthalate (rPET) aerogels can be fabricated by using rPET fibers and polyvinyl alcohol (PVA) and can be coated on MTMS. MTMS on diglycidyl bisphenol A resin (epoxy resin) also shows weathering resistance on exposure to UV by lowering the effect of color change by 45%.

pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-4.0 °F - closed cup

flash_point_c

-20 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves


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Silica cellulose hybrid aerogels for thermal and acoustic insulation applications
Feng J et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 506, 298-305 (2016)
Effect of methyltrimethoxy silane modification on yellowing of epoxy coating on UV (B) exposure
Rajagopalan N and Khanna AS
Journal of Coatings, 2014(2), 43-43 (2014)
Advanced Recycled Polyethylene Terephthalate Aerogels from Plastic Waste for Acoustic and Thermal Insulation Applications
Koh HW, et al.
Gels, 4(2), 43-43 (2018)
Small?Molecule Library Synthesis on Silicon?Functionalized SynPhase Lanterns.
Duvall JR, et al.
Current Protocols in Chemical Biology, 2(3), 135-135 (2010)
Silylation enhances the performance of Au/Ti-SiO2 catalysts in direct epoxidation of propene using H2 and O2
Kanungo S, et al.
J. Catal., 344, 434-444 (2016)

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