175595

Diethoxydimethylsilane

97%

• Synonyme(s) : Dimethyldiethoxysilane
• Formule linéaire : (CH₃)₂Si(OC₂H₅)₂
• Numéro CAS: 78-62-6
• Poids moléculaire : 148.28
• Numéro Beilstein : 1736110
• Numéro CE : 201-127-6
• Numéro MDL: MFCD00009068
• Code UNSPSC : 12352103
• ID de substance PubChem : 24850513
• Nomenclature NACRES : NA.23

Propriétés

• Niveau de qualité: 100
• Pureté: 97%
• Forme: liquid
• Indice de réfraction: n20/D 1.381 (lit.)
• Point d'ébullition: 114 °C (lit.)
• Densité: 0.865 g/mL at 25 °C (lit.)
• Chaîne SMILES: CCO[Si](C)(C)OCC
• InChI: 1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
• Clé InChI: YYLGKUPAFFKGRQ-UHFFFAOYSA-N

Description

Description générale

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.

Informations sur la sécurité

• Pictogrammes: GHS02,GHS08
• Mention d'avertissement: Danger
• Mentions de danger: H225,H361f
• Conseils de prudence: P202 - P210 - P233 - P240 - P241 - P308 + P313
• Classification des risques: Flam. Liq. 2 - Repr. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): 42.8 °F - closed cup
• Point d'éclair (°C): 6 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter