1829-40-9

Basic information

• Product Name: HEXAPHENYLDISILOXANE
• Synonyms: HEXAPHENYLDISILOXANE;Bis(triphenylsilyl)ether;Disiloxane, hexaphenyl-;hexaphenyl-disiloxan;1,1,1,3,3,3-HEXAPHENYLDISILOXANE;Di(triphenylsilyl) oxide;Hexaphenylpropanedisiloxane;Oxybis(triphenylsilane)
• CAS NO: 1829-40-9
• Molecular Formula: C₃₆H₃₀OSi₂
• Molecular Weight: 534.79
• EINECS: 217-381-6
• Product Categories: Industrial/Fine Chemicals;Si (Classes of Silicon Compounds);Siloxanes;Si-O Compounds
• Mol File: 1829-40-9.mol
• Article Data: 31

Chemical Properties

• Melting Point: ~225 °C
• Boiling Point: 494°C
• Flash Point: >200°C
• Appearance: /
• Density: 1,2 g/cm3
• Vapor Pressure: 2.41E-12mmHg at 25°C
• Refractive Index: 1.6800
• BRN: 1334807
• CAS DataBase Reference: HEXAPHENYLDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: HEXAPHENYLDISILOXANE(1829-40-9)
• EPA Substance Registry System: HEXAPHENYLDISILOXANE(1829-40-9)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• F: 10-21
• TSCA: Yes
• Hazardous Substances Data: 1829-40-9(Hazardous Substances Data)

Usage

Description

Hexaphenyldisiloxane, with the CAS number 1829-40-9, is a technical compound with a purity of >=90% (HPLC). It is a siloxane-based molecule consisting of a disiloxane core with six phenyl groups attached to it. This structure endows Hexaphenyldisiloxane with unique properties that make it suitable for various applications across different industries.

Uses

Used in Flame Retardant Resin Composition:
Hexaphenyldisiloxane is used as a building block in the patented formula for flame retardant resin composition. Its incorporation into the resin enhances the fire resistance and safety characteristics of the final product, making it an essential component in the development of flame retardant materials.
Used in Catalyst Preparation for Pyrite FeS2:
In the chemical industry, Hexaphenyldisiloxane serves as a catalyst in the preparation of pyrite, which is an iron sulfide mineral with the chemical formula FeS2. The use of Hexaphenyldisiloxane as a catalyst aids in the efficient and controlled synthesis of pyrite, which has applications in various fields, including the electronics industry and as a source of sulfur.
Used in Water Treatment Applications:
Hexaphenyldisiloxane is also utilized in the synthesis of cross-linked porous polymers, which are employed in water treatment applications. These polymers possess high surface areas and porosities, making them ideal for the adsorption and removal of contaminants from water. By incorporating Hexaphenyldisiloxane into the polymer structure, the resulting materials exhibit enhanced performance in water purification processes.

InChI:InChI=1/C36H30OSi2/c1-7-19-31(20-8-1)38(32-21-9-2-10-22-32,33-23-11-3-12-24-33)37-39(34-25-13-4-14-26-34,35-27-15-5-16-28-35)36-29-17-6-18-30-36/h1-30H

Upstream product

• 109-99-9 tetrahydrofuran 
• 127-63-9 diphenyl sulphone 
• 791-30-0 triphenylsilyl-lithium 
• 76-86-8 Triphenylsilyl chloride 
• 16527-35-8 sodium triphenylsilanolate 
• 379-50-0 triphenylsilyl fluoride 
• 18670-88-7 triphenyl-silanecarboxylic acid 
• 103-71-9 phenyl isocyanate 
• 791-31-1 triphenylhydroxysilane 
• 17198-76-4 1,1,1-trichloro-3,3,3-triphenyl-disiloxane 
• 591-51-5 phenyllithium 
• 6626-84-2 dimethyl 2-benzylidenepropanedioate 
• 57694-91-4 N,N-Diethyl<(triphenylsilyl)ethinyl>amin 
• 7647-01-0 hydrogenchloride 

Downstream Products

• 1333-74-0 hydrogen 
• 71-43-2 benzene 
• 108-95-2 phenol 
• 2117-32-0 n-butyl(triphenyl)silane 
• 791-31-1 triphenylhydroxysilane 
• 16527-35-8 sodium triphenylsilanolate 
• 76-86-8 Triphenylsilyl chloride 
• 17964-41-9 n-butyldiphenylsilyl alcohol 
• 789-25-3 HSiPh₃ 
• 98-11-3 benzenesulfonic acid 
• 18817-63-5 hexacyclohexyl-disiloxane 

Relevant articles and documents

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The interaction of fluoride ion with organosilicons: facile isomerizations and new reactions of silicon hydrides

Cesium fluoride isomerization of several derivatives of 3-silabicyclooctane and 2-silabicycloheptane as well as chiral α-NpPhMeSiH are described.The effect of solvent, 18-crown-6 ether, and other salts is discussed.Associated side reactions prompted study of the conversion of Ph3SiH to Ph3SiF by CsF and the identification of the products formed from the reaction of Ph3SiH with DMF, N-methylformanilide, and benzamide in the presence of metal fluorides.

Silane-silanol dehydrocondensation. The microscopic reverse of hydrogen activation by an organometallic oxide complex

Hydrogen evolution from the dehydrocondensation reaction of triphenylsilane with triphenylsilanol is catalyzed by sodium trimethylsiloxide at 90 deg C in dioxane solvent.This system is the first example of a silane hydrolysis reaction that exhibits simple first order kinetics when investigated under second order conditions, equal concentrations of silane to proton source.Further analysis of the kinetics by the method of initial rates indicates that the reaction is first order in silane and zero order in silanol, demonstrating a multistep mechanistic process and that the proton source is not involved in the rate limiting step.The microscopic reverse process, hydrogen activation, has been investigated at 200-250 deg C and 330 atm of hydrogen using hexamethyldisiloxane and sodium trimethylsiloxide to yield significant, 12percent, quantities of trimethylsilyl hydride; however, the reaction has limited application since the methyl groups are concurrently cleaved to the organic product methane under these conditions.

Nickel(0) catalyzed oxidation of organosilanes to disiloxanes by air as an oxidant

We report here an efficient non-aqueous route to symmetrical disiloxanes from their corresponding organosilanes using Ni(COD)2 with 3,4,7,8-tetramethyl-1,10-phenanthroline in air. Our methodology is very simple and high yielding. The reaction mechanism is also proposed.

FLAME RETARDANT RESIN COMPOSITION

A flame-retarded resin includes at least one resin for which flame retardant capability is desired and at least one triaryl silicon-containing compound (I) as flame retardant in admixture therewith and/or chemically bonded, e.g.. grafted, to the resin.