4667-38-3

Basic information

• Product Name: DIETHOXYDICHLOROSILANE
• Synonyms: DIETHOXYDICHLOROSILANE;Dichlordiethoxysilan;Dichloro(diethoxy)silane;Dichloro-diethoxy-silane;DIETHOXYDICHLOROSILANE, tech-90
• CAS NO: 4667-38-3
• Molecular Formula: C₄H₁₀Cl₂O₂Si
• Molecular Weight: 189.11
• Mol File: 4667-38-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: -130°C
• Boiling Point: 137-138°C
• Flash Point: 31 °C
• Appearance: /liquid
• Density: 1,129 g/cm3
• Vapor Pressure: 10.1mmHg at 25°C
• Refractive Index: 1.426
• CAS DataBase Reference: DIETHOXYDICHLOROSILANE(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHOXYDICHLOROSILANE(4667-38-3)
• EPA Substance Registry System: DIETHOXYDICHLOROSILANE(4667-38-3)

Safety Data

• Statements: 34
• Safety Statements: 26-36/37/39
• RIDADR: 2986
• TSCA: No
• Hazardous Substances Data: 4667-38-3(Hazardous Substances Data)

Usage

General Description

Diethoxydichlorosilane is a chemical compound with the formula SiCl2(C2H5)2. It is a colorless liquid with a pungent odor, and is highly reactive and flammable. Diethoxydichlorosilane is used as a precursor in the synthesis of organosilicon compounds, and as a coupling agent in the production of silicone polymers. It is also used in the manufacturing of adhesives, sealants, and coatings. Diethoxydichlorosilane is a hazardous chemical, and proper safety precautions must be taken when handling and storing it, as it can react violently with water and air.

InChI:InChI=1/C4H10Cl2O2Si/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3

Upstream product

• 4667-99-6 chlorotriethoxysilane 
• 75-77-4 chloro-trimethyl-silane 
• 78-10-4 tetraethoxy orthosilicate 
• 75-94-5 trichlorovinylsilane 
• 64-17-5 ethanol 
• 10026-04-7 tetrachlorosilane 
• 141-78-6 ethyl acetate 
• 7719-12-2 phosphorus trichloride 
• 1825-82-7 trichloroethoxysilane 
• 1825-62-3 ethyl trimethylsilyl ether 
• 78-62-6 diethoxy dimethylsilane 
• 98-13-5 Phenyltrichlorosilane 
• 75-79-6 Methyltrichlorosilane 
• 18163-75-2 trichloro-(furan-2-carbonyloxy)-silane 

Downstream Products

• 5021-93-2 diethyldiethoxysilane 
• 78-62-6 diethoxy dimethylsilane 
• 2031-63-2 diethoxy-dipropyl-silane 
• 2553-19-7 diethoxydiphenylsilane 
• 1825-82-7 trichloroethoxysilane 
• 4667-99-6 chlorotriethoxysilane 
• 780-69-8 triethoxyphenylsilane 
• 1516-80-9 ethoxytriphenylsilane 
• 3555-45-1 3,3-diethoxy-1,1,1,5,5,5-hexamethyltrisiloxane 
• 64793-15-3 2,2,6,6-Tetraethoxy-4,4,8,8-tetraphenyl-[1,3,5,7,2,4,6,8]tetroxatetrasilocane 
• 64793-19-7 C₁₅H₂₈Cl₂O₆Si₃ 
• 54767-28-1 2,7-Dimethyl-5-silaspiro<4.4>nona-2,7-diene 
• 35077-01-1 bis(diethylamino)diethoxysilane 
• 2157-42-8 hexaethoxydisiloxane 

Relevant articles and documents

Ethylene polymerization reactions with multicenter Ziegler-Natta catalysts-manipulation of active center distribution

This article describes ethylene/1-hexene copolymerization reactions with a supported titanium-based, multicenter Ziegler-Natta catalyst. The catalyst was modified by pretreating its solid precursor with AlEt2Cl and with similar organoaluminum chlorides, Al2Et3Cl3, AlEtCl2, and AlMe2Cl. Testing of the untreated and the pretreated catalysts in copolymerization reactions under standard reaction conditions demonstrated that the modifying agents produce two changes in the catalyst. First, the pretreatment significantly reduces the reactivity of active centers that produce high molecular weight, highly crystalline copolymer components with a low 1-hexene content. Second, the pretreatment noticeably increases the reactivity of active centers that produce low molecular weight copolymer components with a high 1-hexene content. The first effect is caused by Lewis acidbase interactions of the modifiers with the active centers, whereas the second (activating) effect is due to the removal of catalyst poisons (organosilicon compounds generated in the process of the catalyst synthesis) by AlEt2Cl.

Synthesis, structure, immobilization and solid-state NMR of new dppp- and tripod-type chelate linkers

Chelating phosphines incorporating ethoxysilane functions for immobilizations have been synthesized and fully characterized. (EtO)Si(CH 2PPh2)3, (EtO)2Si(CH 2PPh2)2, and Si(CH2PPh 2)4 could be prepared in high yields from cheap starting materials. The ethoxysilanes, as well as a Pd complex thereof have been characterized by X-ray structures, and immobilized on silica. The success of the immobilization was proved by 31P solid-state NMR of the dry materials and of the suspensions. Two representative chelate metal complexes, (EtO)2Si(CH2PPh2)2PdCl2 and (EtO)Si(CH2PPh2)3W(CO)3 have been synthesized, characterized and immobilized.

Recovery of trimethylchlorosilane from its azeotropic mixture with SiCl4

Reaction of tetraethoxysilane with the azeotropic mixture Me3SiCl-SiCl4 in the presence of certain cyclic (tetrahydrofuran, dioxane) and acyclic (diethyl ether) ethers, ethanol, or dimethylformamide was studied with the aim of SiMe3Cl recovery.