MilliporeSigma
All Photos(1)

175595

Sigma-Aldrich

Diethoxydimethylsilane

97%

Synonym(s):
Dimethyldiethoxysilane
Linear Formula:
(CH3)2Si(OC2H5)2
CAS Number:
Molecular Weight:
148.28
Beilstein:
1736110
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

assay

97%

form

liquid

refractive index

n20/D 1.381 (lit.)

bp

114 °C (lit.)

density

0.865 g/mL at 25 °C (lit.)

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

Looking for similar products? Visit Product Comparison Guide

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

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

42.8 °F - closed cup

Flash Point(C)

6 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Control of water-channel structure and state of water in sulfonated poly (arylene ether sulfone)/diethoxydimethylsilane in situ hybridized proton conductors and its influence on transport properties for DMFC membranes.
So SY, et al.
Journal of Membrane Science, 346(1), 131-135 (2010)
Organic/inorganic thin films deposited from diethoxydimethylsilane by plasma enhanced chemical vapor deposition
Roualdes S, et al.
Journal of Non-Crystalline Solids, 248(2-3), 235-246 (1999)
Preparation of finely macroporous SiOC foams with high mechanical properties and with hierarchical porosity via pyrolysis of a siloxane/epoxide composite.
Strachota A, et al.
Ceramics International, 41(7), 8402-8410 (2015)
Hydrogen sensing properties of SnO 2 varistors loaded with SiO 2 by surface chemical modification with diethoxydimethylsilane.
Hyodo T, et al.
Sensors and Actuators B, Chemical, 64(1), 175-181 (2000)
Foaming of polysiloxane resins with ethanol: A new route to pyrolytic macrocellular SiOC foams.
Strachota A, et al.
Ceramics International, 41(10), 13561-13571 (2015)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service