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253006

Sigma-Aldrich

Methoxytrimethylsilane

99%

Synonym(s):

Methyl trimethylsilyl ether, Trimethylmethoxysilane

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About This Item

Linear Formula:
CH3OSi(CH3)3
CAS Number:
Molecular Weight:
104.22
Beilstein:
1731490
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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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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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-4.0 °F - closed cup

Flash Point(C)

-20 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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