175595
Diethoxydimethylsilane
97%
Synonym(s):
Dimethyldiethoxysilane
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About This Item
Linear Formula:
(CH3)2Si(OC2H5)2
CAS Number:
Molecular Weight:
148.28
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
EC Number:
201-127-6
Beilstein/REAXYS Number:
1736110
MDL number:
Product Name
Diethoxydimethylsilane, 97%
InChI key
YYLGKUPAFFKGRQ-UHFFFAOYSA-N
InChI
1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
SMILES string
CCO[Si](C)(C)OCC
assay
97%
form
liquid
refractive index
n20/D 1.381 (lit.)
bp
114 °C (lit.)
density
0.865 g/mL at 25 °C (lit.)
Quality Level
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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.
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.
Hazard Classifications
Flam. Liq. 2 - Repr. 2
signalword
Danger
hcodes
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
42.8 °F - closed cup
flash_point_c
6 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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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)
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)
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)
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)
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