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175595 Sigma-Aldrich

Diethoxydimethylsilane

97%

Synonym: Dimethyldiethoxysilane

  • CAS Number 78-62-6

  • Linear Formula (CH3)2Si(OC2H5)2

  • Molecular Weight 148.28

  •  Beilstein/REAXYS Number 1736110

  •  EC Number 201-127-6

  •  MDL number MFCD00009068

  •  PubChem Substance ID 24850513

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Properties

Related Categories Chemical Synthesis, Di-Alkoxy Silanes, Materials Science, Micro/NanoElectronics, Organometallic Reagents,
Quality Level   100
assay   97%
form   liquid
refractive index   n20/D 1.381 (lit.)
bp   114 °C (lit.)
density   0.865 g/mL at 25 °C (lit.)
storage temp.   room temp
SMILES string   CCO[Si](C)(C)OCC
InChI   1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
InChI key   YYLGKUPAFFKGRQ-UHFFFAOYSA-N

Description

General description

Diethoxydimethylsilane (DEDMS) is an organically modified silicate (ORMOSIL) with two methyl groups in each unit that facilitate the hydrophobic characteristics. It is mainly utilized to functionalize a variety of substrates.

Application

Diethoxydimethylsilane (DMDES) may be used to modify epoxy resin6 and the surfaces of pure silica and Pd/SiO2 hydrogen gas sensors. Surface modification results in enhanced gas sensing properties of the sensors. {43}-{44}Diethoxydimethylsilane may be used as a precursor for the synthesis of ultrafine SiC powder. {45} Studies report its use as a precursor for ORMOSIL (Organically modified SILicates) and thin a-SiOxCyHz films.{47}

The composite of DEDMS and triethoxymethylsilane can be used to synthesize a liquid precursor resin for the preparation of silicon oxycarbide (SiOC). It can form a sol-gel coating on polyamide-polyethylene (PA/PE), which can be used as an anti-oxidizing food packaging material. It can also be used as a precursor in the synthesis of polydimethylsiloxane, which forms an anti-corrosive coating composite with waterborne polyurethane.

Packaging

100, 500 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 2380 3 / PGII
WGK Germany 
WGK 2
RTECS 
VV3590000
Flash Point(F) 
42.8 °F - closed cup
Flash Point(C) 
6 °C - closed cup
Protocols & Articles
Peer-Reviewed Papers
15

References

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