Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

175595

Sigma-Aldrich

Diethoxydimethylsilane

97%

Synonym(s):

Dimethyldiethoxysilane

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
(CH3)2Si(OC2H5)2
CAS Number:
78-62-6
Molecular Weight:
148.28
Beilstein:
1736110
EC Number:
201-127-6
MDL number:
MFCD00009068
UNSPSC Code:
12352103
PubChem Substance ID:
24850513
NACRES:
NA.23

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.)

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

Related Categories

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.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H315,H319,H332

Hazard Classifications

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

WGK

WGK 2

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Carbon dioxide laser synthesis of ultrafine silicon carbide powders from diethoxydimethylsilane.
Li, Ya-Li, et al.
Journal of the American Ceramic Society. American Ceramic Society, 77(6), 1662-1664 (1994)
Surface Modification of Sol-Gel Hybrid films using fluorinated silica nanoparticles
Purcar, V., Donescu, D., Spataru, I. C., Ghiurea, M., Caprarescu, S., Petcu, C., & Nistor
Rev. Roum. Chim., 58(1), 37-42 (2013)
View All Related Papers

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