2295-17-2

Basic information

• Product Name: 1,3-DIETHYLTETRAMETHYLDISILOXANE
• Synonyms: 1,3-DIETHYLTETRAMETHYLDISILOXANE;1,3-Diethyl-1,1,3,3-Tetramethyl Disiloxane
• CAS NO: 2295-17-2
• Molecular Formula: C₈H₂₂OSi₂
• Molecular Weight: 190.43
• Mol File: 2295-17-2.mol
• Article Data: 5

Chemical Properties

• Melting Point: -120°C
• Boiling Point: 150-156°C
• Flash Point: 30°C
• Appearance: /
• Density: 0,797 g/cm3
• Vapor Pressure: 6.37mmHg at 25°C
• Refractive Index: 1.4012
• CAS DataBase Reference: 1,3-DIETHYLTETRAMETHYLDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-DIETHYLTETRAMETHYLDISILOXANE(2295-17-2)
• EPA Substance Registry System: 1,3-DIETHYLTETRAMETHYLDISILOXANE(2295-17-2)

Safety Data

• Statements: 10-36/37/38
• Safety Statements: 16-26-36
• RIDADR: 1993
• TSCA: No
• Hazardous Substances Data: 2295-17-2(Hazardous Substances Data)

Usage

General Description

1,3-Diethyltetramethyldisiloxane is a chemical compound with the molecular formula C8H22OSi2. It is a colorless, odorless, and non-reactive liquid that is commonly used as a lubricant and a surfactant. 1,3-DIETHYLTETRAMETHYLDISILOXANE has a unique chemical structure that includes a silicon-oxygen backbone with carbon and ethyl groups attached. 1,3-Diethyltetramethyldisiloxane has low surface tension and good thermal stability, making it suitable for use in a wide range of industrial applications, including in the production of polishes, coatings, and personal care products. Its properties also make it effective as a release agent and mold release agent in the manufacturing of various materials, such as plastics and rubber. Additionally, this chemical compound has low toxicity and minimal environmental impact, enhancing its appeal for use in various commercial and industrial settings.

InChI:InChI=1/C8H22OSi2/c1-7-10(3,4)9-11(5,6)8-2/h7-8H2,1-6H3

Upstream product

• 925-90-6 ethylmagnesium bromide 
• 75-78-5 dimethylsilicon dichloride 
• 2627-95-4 tetramethyldivinyldisiloxane 
• 74-96-4 ethyl bromide 
• 18420-09-2 1,3-diethoxy-1,1,3,3-tetramethyldisiloxane 
• 758-21-4 dimethylethylsilane 
• 124-38-9 carbon dioxide 
• 107-31-3 Methyl formate 
• 6917-76-6 ethyldimethylsilyl chloride 
• 2917-65-9 trimethylsilylmethyl acetate 
• 60-29-7 diethyl ether 
• 4417-33-8 Bis(ethyldimethylsilyl)chloromethylphosphonat 
• 56964-58-0 Siliconeopentyldichlorophosphat 
• 4206-67-1 iodo(trimethylsilyl)methane 

Downstream Products

• 6917-75-5 ethyl-bromo-dimethyl-silane 

Relevant articles and documents

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The Stabilization of Three-Coordinate Formal Mn(0) Complex with NHC and Alkene Ligation

Low-coordinate zero-valent metal species are implicated as key intermediates in various transition-metal-catalyzed and -mediated reactions. However, knowledge on this type of metal species has been mainly restricted to the metals in groups 8–10, and that

FTIR study of thermally induced transformations of trimethylsilylmethyl acetate in the temperature range 623-813 K

The chemistry of trimethylsilylmethyl acetate in the gas phase in the temperature range 623-813 K has been investigated under static conditions using Fourier transform IR spectroscopy. Little change occurs at temperatures lower than 623 K, at which temperature a thermally induced isomerization to form ethyldimethylsilyl acetate occurs. Some ethanoic acid is also produced at this temperature. The ethyldimethylsilyl acetate produced undergoes thermolysis at temperatures > 723 K giving methane, ethene, carbon monoxide, carbon dioxide, ethanoic acid, 1,3-diethyl-1,1,3,3-tetramethyldisiloxane, cyclohexamethyltrisiloxane, and cyclooctamethyltetrasiloxane as products. Loss of ethyldimethylsilyl acetate is first order over the whole temperature range, and first-order rate constants vary from 4.87 × 10-5 s-1 at 723 K to 33.5 × 10-5 s-1 at 813 K, respectively, leading to an activation energy, Ea,, of 110(4) kJ mol-1. An intramolecular five-centre process is proposed for the isomerization reaction. The thermolysis is interpreted in terms of principally radical reactions involving initial homolytic dissociation of the EtMe2SiO-C(O)CH3 bond.

An efficient iridium catalyst for reduction of carbon dioxide to methane with trialkylsilanes

Cationic silane complexes of general structure (POCOP)Ir(H)(HSiR 3) {POCOP = 2,6-[OP(tBu)2]2C6H 3} catalyze hydrosilylations of CO2. Using bulky silanes results in formation of bis(silyl)acetals and methyl silyl ethers as well as siloxanes and CH4. Using less bulky silanes such as Me 2EtSiH or Me2PhSiH results in rapid formation of CH 4 and siloxane with no detection of bis(silyl)acetal and methyl silyl ether intermediates. The catalyst system is long-lived, and 8300 turnovers can be achieved using Me2PhSiH with a 0.0077 mol % loading of iridium. The proposed mechanism for the conversion of CO2 to CH4 involves initial formation of the unobserved HCOOSiR3. This formate ester is then reduced sequentially to R3SiOCH2OSiR 3, then R3SiOCH3, and finally to R 3SiOSiR3 and CH4.