CAS 78-62-6

Dimethyldiethoxysilane

Description:

Dimethyldiethoxysilane, with the CAS number 78-62-6, is an organosilicon compound characterized by its silane structure, which includes two ethoxy groups and two methyl groups attached to a silicon atom. This compound is typically a colorless liquid with a mild odor and is known for its reactivity, particularly in hydrolysis, where it can form silanol groups and subsequently polymerize to create siloxane networks. It is soluble in organic solvents and exhibits low volatility, making it useful in various applications, including as a coupling agent, surface modifier, and in the formulation of silicone-based materials. Dimethyldiethoxysilane is also utilized in the production of coatings, adhesives, and sealants due to its ability to enhance adhesion and improve water resistance. Safety considerations include handling it in well-ventilated areas and using appropriate personal protective equipment, as it can cause irritation to the skin and eyes. Overall, its unique chemical properties make it valuable in both industrial and research settings.

Formula: C₆H₁₆O₂Si

InChI: InChI=1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3

InChI key: InChIKey=YYLGKUPAFFKGRQ-UHFFFAOYSA-N

SMILES: [Si](OCC)(OCC)(C)C

Synonyms:

• Cg-N 222
• Diaethoxy-Dimethyl-Silan
• Diethoxy(dimethyl)silan
• Diethoxy(dimethyl)silane
• Dietoxi(Dimetil)Silano
• Dimethyl diethoxy silicane
• Dimethyldiethoxylsilane
• Dimethyldiethoxysilane
• Dimethylsilicondiethoxide
• Dmdes
• Dp 322
• Kbe 22
• Ls 1370
• Nsc 77085
• Silane, Dimethyldiethoxy-
• Silane, diethoxydimethyl-
• Sz 6078
• Tsl 8122

Diethoxydimethylsilane, 97%

CAS: 78-62-6

Diethoxydimethylsilane is useful for blocking hydroxyl and amino groups in organic synthesis reactions. This silylating step allows subsequent reactions to be carried out which would be adversely affected by the presence of active hydrogen in the hydroxyl or amine groups. Following the reaction step

Formula: C₆H₁₆O₂Si

Purity: 97%

Color and Shape: Liquid, Clear colorless to pale yellow

Molecular weight: 148.28

Ref: 02-L14725

Diethoxydimethylsilane

CAS: 78-62-6

Formula: C₆H₁₆O₂Si

Purity: >98.0%(GC)

Color and Shape: Colorless to Almost colorless clear liquid

Molecular weight: 148.28

Ref: 3B-D0454

Dimethyldiethoxysilane

CAS: 78-62-6

S07125 - Dimethyldiethoxysilane

Formula: C₆H₁₆O₂Si

Purity: >98.0%(GC)

Color and Shape: Liquid, Clear

Molecular weight: 148.277

Ref: 10-S07125

Bis(ethoxy)dimethylsilane

CAS: 78-62-6

Bis(ethoxy)dimethylsilane

Formula: C₆H₁₆O₂Si

Purity: ≥95%

Color and Shape: clear. almost colourless liquid

Molecular weight: 148.28g/mol

Ref: 54-OR61048

DIMETHYLDIETHOXYSILANE, 98%

CAS: 78-62-6

Alkyl Silane - Conventional Surface Bonding
Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.
Dimethyldiethoxysilane; Diethoxydimethylsilane
Viscosity: 0.53 cStVapor pressure, 25 °C: 15 mmΔHcomb: -4,684 kJ/molΔHform: 837 kJ/molΔHvap: 41.0 kJ/molDipole moment: 1.39 debyeVapor pressure, 25 °C: 15 mmCoefficient of thermal expansion: 1.3 x 10-3Hydrophobic surface treatment and release agentDialkoxy silane

Formula: C₆H₁₆O₂Si

Purity: 98%

Color and Shape: Colorless To Slightly Yellow Liquid

Molecular weight: 148.28

Ref: 3H-SID4121.0

Dimethyldiethoxysilane, 97%

CAS: 78-62-6

Dimethyldiethoxysilane, 97%

Formula: (CH₃)₂Si(OC₂H₅)₂

Purity: 97%

Color and Shape: colorless liq.

Molecular weight: 148.30

Ref: 08-93-1406