13175-88-7

Basic information

• Product Name: diethoxy(ethyl)silane
• Synonyms: diethoxy(ethyl)silane;Ethyldiethoxysilane
• CAS NO: 13175-88-7
• Molecular Formula: C₆H₁₆O₂Si
• Molecular Weight: 148.27554
• Mol File: 13175-88-7.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: diethoxy(ethyl)silane(CAS DataBase Reference)
• NIST Chemistry Reference: diethoxy(ethyl)silane(13175-88-7)
• EPA Substance Registry System: diethoxy(ethyl)silane(13175-88-7)

Safety Data

• Hazardous Substances Data: 13175-88-7(Hazardous Substances Data)

Usage

Uses

Used in Silicone Polymer Production:
Diethoxy(ethyl)silane is used as a crosslinking agent for enhancing the structural properties of silicone polymers. Its incorporation leads to the formation of a three-dimensional network within the polymer matrix, thereby improving the material's mechanical strength, thermal stability, and resistance to environmental factors.
Used in Adhesive and Sealant Formulation:
Diethoxy(ethyl)silane is utilized as a silane coupling agent in the formulation of adhesives and sealants. It promotes strong adhesion between organic resins and inorganic materials, such as glass, metal, and concrete surfaces. This results in the development of high-performance adhesives and sealants with excellent bonding strength, durability, and resistance to various environmental conditions.
Used in Coatings Industry:
In the coatings industry, diethoxy(ethyl)silane is employed as a silane coupling agent to improve the adhesion and compatibility of coatings with various substrates. Its use leads to the development of coatings with enhanced durability, resistance to corrosion, and improved surface properties, such as hardness and scratch resistance.
Used in Composite Materials:
Diethoxy(ethyl)silane is used in the production of composite materials to enhance the interfacial bonding between the organic matrix and inorganic fillers or reinforcements. This results in composites with improved mechanical properties, such as increased strength, stiffness, and toughness, as well as enhanced resistance to environmental degradation.
Used in Surface Treatment and Modification:
Diethoxy(ethyl)silane is utilized for surface treatment and modification of various materials, such as metals, ceramics, and polymers. Its application leads to the formation of a thin, chemically bonded layer on the material surface, which can improve properties like wettability, adhesion, and corrosion resistance.

Upstream product

• 6485-91-2 chlorodiethoxysilane 
• 925-90-6 ethylmagnesium bromide 
• 64-17-5 ethanol 
• 1789-58-8 ethyldichlorosilane 
• 74-85-1 ethene 
• 7440-21-3 silicon 

Relevant articles and documents

Direct synthesis of alkyldialkoxysilanes by the reaction of silicon, alcohol and alkene using a high-pressure flow reactor

In the reaction of silicon, methanol and ethylene, use of a high-pressure flow reactor operating at 240°C at 0.86 MPa of ethylene and 0.18 MPa of methanol gave a 33% selectivity for ethyldimethoxysilane, which was much higher than that using an atmospheric-pressure flow reactor (8%) or using an autoclave (4%). The selectivity increased proportionally with the ethylene pressure below 0.5 MPa. This indicates that the addition of ethylene or methanol to a surface silylene intermediate determines the selectivity and that the ethylene addition is a first-order reaction. Above 0.5 MPa the slope of the selectivity change was smaller. By feeding propylene instead of ethylene, n- and iso-propyldimethoxysilanes were obtained as organosilanes with 15 and 2% of selectivity, respectively. The reaction of silicon, ethanol and ethylene resulted in 28% selectivity for ethyldiethoxysilane at 0.99 MPa of ethylene and 0.21 MPa of ethanol at 240°C.

Direct synthesis of methyldimethoxysilane from metallic silicon and methanol using copper(I) chloride catalyst

When the reaction of metallic silicon with methanol in the presence of a small amount of thiophene was carried out at 653 K, methyldimethoxysilane was formed together with trimethoxysilane and tetramethoxysilane, the selectivity for methyldimethoxysilane being 22%. Further adding a small amount of trioxane, trimer of formaldehyde, to the reaction system improved the selectivity for methyldimethoxysilane. This indicates that formaldehyde formed by the dehydrogenation of methanol takes part in methyldimethoxysilane formation. The reaction of silicon with ethanol also gave a 14% selectivity of ethyldiethoxysilane with a 43% silicon conversion.

Process for the direct synthesis of trialkoxysilane

This invention discloses a process to improve reaction stability in the Direct Synthesis of trialkoxysilanes. The process is particularly effective in the Direct Synthesis of triethoxysilane and its higher alkyl cognates providing improved triethoxysilane yields.