2031-79-0

Basic information

• Product Name: Hexaethylcyclotrisiloxane
• Synonyms: HEXAETHYLCYCLOTRISILOXANE;1,1,3,3,5,5-hexaethylcyclotrisiloxane;2,2,4,4,6,6-Hexaethyl-1,3,5,2,4,6-trioxatrisilinane;Cyclotrisiloxane, hexaethyl-;hexaethyl-cyclotrisiloxan;HEXAETPYLCYCLOTRISILOXANE;Hexaethyl-1,3,5-trioxa-2,4,6-trisilacyclohexane;Hexaethylcyclohexanetrisiloxane
• CAS NO: 2031-79-0
• Molecular Formula: C₁₂H₃₀O₃Si₃
• Molecular Weight: 306.62
• EINECS: 217-984-4
• Product Categories: Siloxanes
• Mol File: 2031-79-0.mol
• Article Data: 9

Chemical Properties

• Melting Point: 14°C
• Boiling Point: 117°C 10mm
• Flash Point: >65°C
• Appearance: Colorless or yellowish transparent liquid
• Density: 0,955 g/cm3
• Vapor Pressure: 0.0314mmHg at 25°C
• Refractive Index: 1.4308
• CAS DataBase Reference: Hexaethylcyclotrisiloxane(CAS DataBase Reference)
• NIST Chemistry Reference: Hexaethylcyclotrisiloxane(2031-79-0)
• EPA Substance Registry System: Hexaethylcyclotrisiloxane(2031-79-0)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• TSCA: Yes
• Hazardous Substances Data: 2031-79-0(Hazardous Substances Data)

Usage

Description

Hexaethylcyclotrisiloxane is a colorless or yellowish transparent liquid with unique chemical properties that make it suitable for various applications, particularly in the field of material science and engineering.

Uses

Used in Nano-Protective Coating Industry:
Hexaethylcyclotrisiloxane is used as a component in the formulation of nano-protective coatings for its ability to enhance the protective properties of the coatings, providing a durable and efficient barrier against environmental factors such as moisture, chemicals, and abrasion. Its unique chemical properties contribute to the overall performance and durability of the coating, making it a valuable addition to the formulation process.

InChI:InChI=1/C12H30O3Si3/c1-7-16(8-2)13-17(9-3,10-4)15-18(11-5,12-6)14-16/h7-12H2,1-6H3

Upstream product

• 5021-93-2 diethyldiethoxysilane 
• 1719-53-5 diethyldichlorosilane 
• 75-77-4 chloro-trimethyl-silane 
• 75217-22-0 decaethylcyclopentasilane 
• 7732-18-5 water 
• 542-91-6 H₂SiEt₂ 
• 4472-41-7 d₇-N,N-dimethylformamide 
• 56-23-5 tetrachloromethane 
• 18244-18-3 diethyl-chloro-isopropoxy-silane 

Downstream Products

• 2031-77-8 Decaaethyl-tetrasiloxan 
• 2031-78-9 Dodecaaethyl-pentasiloxan 

Relevant articles and documents

Controlled synthesis of cyclosiloxanes by NHC-catalyzed hydrolytic oxidation of dihydrosilanes

Hydrolytic oxidation of various hydrosilanes in acetonitrile and in the absence of organic solvents catalyzed by an N-heterocyclic carbene organocatalysis is described. The NHC organocatalyst exhibited a very high activity with only 0.1 mol% loading of the catalyst in acetonitrile for aryl-substituted dihydrosilanes to produce hydrogen gas and cyclosiloxanes almost quantitatively in several minutes. The calculated TOF (15 000 h-1) of this organocatalyst is comparable to those of precious metal-based heterogeneous catalysts and much superior to those of the existing homogeneous metal catalysts. The catalytic reaction selectively yielded cyclosiloxanes in high yield without the contamination of silanols. Furthermore, the catalytic reaction can also be furnished under solvent-free conditions at elevated temperatures with 2.5 mol% loading of the NHC in 5-12 hours.

Sodium Hydroxide Catalyzed Dehydrocoupling of Alcohols with Hydrosilanes

An O-Si bond construction protocol employing abundantly available and inexpensive NaOH as the catalyst is described. The method enables the cross-dehydrogenative coupling of an alcohol and hydrosilane to directly generate the corresponding silyl ether under mild conditions and without the production of stoichiometric salt byproducts. The scope of both coupling partners is excellent, positioning the method for use in complex molecule and materials science applications. A novel Si-based cross-coupling reagent is also reported.

The effect of ring-size on the electrochemical oxidation of perethylcyclopolysilanes [(Et2Si)n]

For evaluating the net ring-size effect on the electrochemical properties of cyclic polysilanes, four perethylpolysilanes, namely octaethylcyclotetrasilane (Et2Si)4 (I), decaethylcyclopentasilane (Et2Si)5 (II), dodecaethylcyclohexasilane (Et2Si)6 (III) and tetradecaethylcycloheptasilane (Et2Si)7 (IV), were studied by cyclic voltammetry and controlled potential electrolysis. In addition, the effects of the nature of electrolyte, amount of electricity consumption and anode material on the electrolysis outcome was demonstrated for compound II.