5314-55-6

Basic information

• Product Name: ETHYLTRIMETHOXYSILANE
• Synonyms: ETHYLTRIMETHOXYSILANE;ethyltrimethoxy-silan;Silane, ethyltrimethoxy-;ETHYLTRIMETHOXYSILANE, 97+%;dow corning product 1-6321;trimethoxyethylsilane;ETHYLTRIMETHOXYSILANE (CONTAINS CHLOROSILANES FOR STABILISATION);Dow Corning(R) product 1-6321
• CAS NO: 5314-55-6
• Molecular Formula: C₅H₁₄O₃Si
• Molecular Weight: 150.25
• EINECS: 226-172-9
• Product Categories: Organics
• Mol File: 5314-55-6.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 123-124 °C(lit.)
• Flash Point: 81 °F
• Appearance: /
• Density: 0.94 g/mL at 25 °C(lit.)
• Vapor Pressure: 15.5mmHg at 25°C
• Refractive Index: n20/D 1.384(lit.)
• Water Solubility: Soluble,Decomposes in contact with water in water
• Sensitive: Moisture Sensitive
• CAS DataBase Reference: ETHYLTRIMETHOXYSILANE(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYLTRIMETHOXYSILANE(5314-55-6)
• EPA Substance Registry System: ETHYLTRIMETHOXYSILANE(5314-55-6)

Safety Data

• Hazard Codes: Xi
• Statements: 10-36
• Safety Statements: 16-26-36
• RIDADR: UN 1993 3/PG 3
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 5314-55-6(Hazardous Substances Data)

Usage

General Description

Ethyltrimethoxysilane is a colorless liquid chemical compound that is used as a coupling agent and adhesion promoter in various industrial applications. It is a organosilicon compound with the chemical formula C5H14O3Si and is derived from the reaction between ethyl chloride and a silicon compound. Ethyltrimethoxysilane is commonly used as a surface modifying agent for glass, metals, and other inorganic materials, as it can enhance adhesion, improve surface wetting, and provide durability to coatings and adhesives. It is also used in the production of silicone polymers and resins, where it acts as a crosslinking agent to improve the mechanical properties of the final product. However, it should be handled with care, as it can be hazardous if not properly managed and may cause irritation to the skin, eyes, and respiratory system.

InChI:InChI=1/C5H14O3Si/c1-5-9(6-2,7-3)8-4/h5H2,1-4H3

Upstream product

• 67-56-1 methanol 
• 115-21-9 ethyltrichlorosilane 
• 124-41-4 sodium methylate 
• 681-84-5 tetramethylorthosilicate 
• 557-20-0 diethylzinc 
• 74-85-1 ethene 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 197086-66-1 1,2-diethyl-1,1,2,2-tetramethoxydisilane 
• 146899-06-1 1,2-diethyl-1,1,2,2-tetraethoxydisilane 
• 2487-90-3 trimethoxysilane 

Downstream Products

• 112675-36-2 ethyl(methoxy)(diphenyl)silane 
• 1112-39-6 dimethyldimethoxysilan 
• 69618-49-1 1-ethyl-3-phenyl-2,8,9-trioxa-5-aza-1-silabicyclo[3,3.3]undecane 

Relevant articles and documents

Selective Catalytic Hydrosilylation of Ethylene. Preparation of Ethyltrimethoxysilane by H2O Promoted RuCl3 ? 3H2O Catalyst

Abstract: The work describes an efficient one-step solvent-free synthesis of ethyltrimethoxysilane through hydrosilylation reaction catalyzed by RuCl3 ? 3H2O–H2O. The procedure involves time point and dose of adding additive water. Excellent yields, short reaction times, and easy reaction handling under solvent-free and mild conditions are the most important advantages of the present protocol. A possible reaction mechanism was discussed by empirical method.

Metastable Ion Studies: Ethyl(methoxy)(chloro)silanes

Metastable ion scanning was used to investigate the fragmentation patterns of ethyl(trimethoxy)silane, ethyl(dimethoxy)chlorosilane and ethyl(methoxy)dichlorosilane, their deuterated counterparts and ethyltrichlorosilane.For these compounds the molecule ion has a low abundance using 70 eV electron impact ionization.In all cases the base peak corresponds to the loss of neutral C2H5.When chemical ionization is employed with isobutane, usable peaks representative of the molecule ions are observed.

Hydrosilylation of ethylene

Hydrosilylation of ethylene with trialkoxysilanes in the presence of Pt(0) complexes as catalysts affords ethyltrialkoxysilanes in almost quantitative yields. No impurities of vinyltrialkoxysilanes were detected. Experiments and ab initio calculations showed that the Pt(0) catalysts are considerably more active in ethylene hydrosilylation than Pt(II) catalysts. Pleiades Publishing, Inc., 2006.