175595

Diethoxydimethylsilane

97%

• Synonyma: Dimethyldiethoxysilane
• Lineární vzorec: (CH₃)₂Si(OC₂H₅)₂
• Číslo CAS: 78-62-6
• Molekulová hmotnost: 148.28
• Beilstein/REAXYS Number: 1736110
• EC Number: 201-127-6
• MDL number: MFCD00009068
• UNSPSC Code: 12352103
• PubChem Substance ID: 24850513
• NACRES: NA.23

Vlastnosti

• 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

Popis

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.

Bezpečnostní informace

• pictograms: GHS02,GHS08
• signalword: Danger
• hcodes: H225,H361f
• pcodes: P202 - P210 - P233 - P240 - P241 - P308 + P313
• Hazard Classifications: Flam. Liq. 2 - Repr. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: 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