75144-60-4

Basic information

• Product Name: HEXAVINYLDISILOXANE
• Synonyms: HEXAVINYLDISILOXANE;Hexaethynyl disulphoxane;HexaethenylDisiloxane
• CAS NO: 75144-60-4
• Molecular Formula: C₁₂H₁₈OSi₂
• Molecular Weight: 234.44
• Mol File: 75144-60-4.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 115 °C
• Flash Point: 62°C
• Appearance: /
• Density: 0.84
• Vapor Pressure: 0.319mmHg at 25°C
• Refractive Index: 1.459
• CAS DataBase Reference: HEXAVINYLDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: HEXAVINYLDISILOXANE(75144-60-4)
• EPA Substance Registry System: HEXAVINYLDISILOXANE(75144-60-4)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• RIDADR: 1993
• TSCA: No
• Hazardous Substances Data: 75144-60-4(Hazardous Substances Data)

Usage

General Description

Hexavinyldisiloxane is a chemical compound with the molecular formula of C12H32O2Si2. It is a colorless liquid with a mild odor and is mainly used as a crosslinking agent in the production of silicone rubber and other silicone-based materials. Hexavinyldisiloxane is also used as a solvent and dispersing agent for silicone resins and as a monomer in the synthesis of siloxane polymers. It is considered to be a low hazard chemical with low toxicity, but proper safety precautions should still be taken when handling and using this substance.

InChI:InChI=1/C12H18OSi2/c1-7-14(8-2,9-3)13-15(10-4,11-5)12-6/h7-12H,1-6H2

Upstream product

• 2372-31-8 triethenylsilane 
• 1871-21-2 chlorotrivinylsilane 
• 2157-42-8 hexaethoxydisiloxane 
• 3536-96-7 vinylmagnesium chloride 

Downstream Products

• 827-54-3 2-naphthylethylene 
• 10537-63-0 1-(4-vinylphenyl)ethanone 

Relevant articles and documents

Copper-Promoted Formation of Vinylsiloxanes

The metathesis reactions of chlorovinylsilanes with copper(I) oxide are reported. The process is catalyzed by HCl which can be in situ generated via hydrolysis of chlorosilanes by traces of water present in the system. An appearance of olefin/CuCl π-intermediates can provide a stereoselectivity of the process and alter the pathway of siloxanes formation employing Cu2O as the source of oxygen. It was also shown that acetonitrile may be available as a solvent for construction of the systems with large preparative capabilities, including those based on the use atmospheric oxygen in siloxane synthesis.

Side products in the syntheses of vinylsilanes and vinylsiloxanes using vinylmagnesium chloride

Impurity of moisture in the solvent (tetrahydrofuran) alters the, normal scheme of formation of vinylmagnesiumm chloride and gives rise to several unexpected products: benzene, toluene, and methyl chloride. Side products forming in alkali hydrolysis of trivinylsilane and hydrochlorination of tetravinylsilane were isolated and identified.

REACTIVITY OF Si-H BONDS IN ORGANOSILANES

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