1189-93-1

Basic information

• Product Name: 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE
• Synonyms: HEXAMETHYLTRISILOXANE;1,1,3,3,5,5-HEXAMETHYLTRISILOXANE;1,1,3,3,5,5-hexamethyl-trisiloxan;1,3,3,5,5-hexamethyltrisiloxane;Trisiloxane, 1,1,3,3,5,5-hexamethyl-;1,1,3,3,5,5-Hexamethylpentanetrisiloxane;Bis(dimethylsiloxy)dimethylsilane;Dimethylsilylenebis(oxy)bis(dimethylsilane)
• CAS NO: 1189-93-1
• Molecular Formula: C₆H₂₀O₂Si₃
• Molecular Weight: 208.48
• EINECS: 214-716-8
• Product Categories: Organometallic Reagents;Organosilicon;Siloxanes
• Mol File: 1189-93-1.mol

Chemical Properties

• Melting Point: -67°C
• Boiling Point: 128 °C(lit.)
• Flash Point: 59 °F
• Appearance: clear colorless liquid
• Density: 0.822 g/mL at 25 °C(lit.)
• Vapor Pressure: 5.413mmHg at 25°C
• Refractive Index: n20/D 1.383(lit.)
• Storage Temp.: Flammables area
• Water Solubility: Slightly miscible with water.
• Sensitive: Moisture Sensitive
• BRN: 1746341
• CAS DataBase Reference: 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE(1189-93-1)
• EPA Substance Registry System: 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE(1189-93-1)

Safety Data

• Hazard Codes: F
• Statements: 11
• Safety Statements: 16-23-24/25
• RIDADR: UN 1993 3/PG 2
• WGK Germany: 3
• F: 10
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 1189-93-1(Hazardous Substances Data)

Usage

Uses

1. Used in Chemical Synthesis:
1,1,3,3,5,5-Hexamethyltrisiloxane is used as a silylating agent in the chemical synthesis process. Its ability to react with other compounds makes it a valuable intermediate in the production of various organic and inorganic materials.
2. Used in Coatings Industry:
In the coatings industry, 1,1,3,3,5,5-Hexamethyltrisiloxane is involved in the preparation of 2-bis(3-allyl-4-hydroxyphenyl)hexafluoropropane. 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE is associated with inorganic siloxane polymer and is used as a coating material for the detection of toxic chemical warfare agents. The unique properties of 1,1,3,3,5,5-Hexamethyltrisiloxane contribute to the development of effective and sensitive detection systems.
3. Used in the Preparation of 1,5-Bis[2-(1,2-epoxycyclohex-4-yl)ethyl]-1,1,3,3,5,5-hexamethyltrisiloxane:
1,1,3,3,5,5-Hexamethyltrisiloxane is also used in the preparation of 1,5-Bis[2-(1,2-epoxycyclohex-4-yl)ethyl]-1,1,3,3,5,5-hexamethyltrisiloxane from 4-vinyl-1-cyclohexene-1,2-epoxide by hydrosilylation. 1,1,3,3,5,5-HEXAMETHYLTRISILOXANE has potential applications in various industries, including the production of advanced materials and coatings.

InChI:InChI=1/C6H20O2Si3/c1-9-7-11(5,6)8-10(2,3)4/h9H2,1-6H3

Upstream product

• 1066-35-9 dimethylmonochlorosilane 
• 75-78-5 dimethylsilicon dichloride 
• 3277-26-7 1,1,3,3-Tetramethyldisiloxane 
• 556-67-2 octamethylcyclotetrasiloxane 
• 617-86-7 triethylsilane 
• 542-91-6 H₂SiEt₂ 
• 1000-05-1 1,1,3,3,5,5,7,7-octamethyltetrasiloxane 
• 541-05-9 Hexamethylcyclotrisiloxane 
• 98-83-9 isopropenylbenzene 
• 1066-42-8 dimethylsilanediol 

Downstream Products

• 3663-50-1 1,1,3,3,5,5-Hexamethyltrisiloxane-1,5-diol 
• 1693-44-3 1,1-diphenyl-3,3,5,5,7,7-hexamethyltetracyclosiloxane 
• 3582-71-6 1,5-dichlorohexamethyltrisiloxane 
• 393588-38-0 C₄₆H₆₄O₈Si₃ 
• 680584-26-3 4-Octyloxy-2-[4-(1,1,3,3-tetramethyl-disiloxanyl)-butoxy]-benzoic acid 4-[4-(4-octyloxy-benzoyloxy)-phenyl]-cyclohexyl ester 
• 134443-12-2 1,5-bis(3-(4-formylphenoxy)propyl)-1,1,3,3,5,5-hexamethyltrisiloxane 

Relevant articles and documents

Preparation of biomimetic membrane with hierarchical structure and honeycombed through-hole for enhanced oil–water separation performance

Efficient oil–water separation plays a vital role in treating large amounts of industrial wastewater. However, current traditional separation methods are entwined with problems such as low efficiency and poor operability. Herein, we reported a nanofiber based on electrospinning and electrospray technology and spraying microspheres on the surface of a fiber mat for efficient oil–water separation. Owing to the electrostatic repulsion among the microspheres, the surface of the developed membrane had a honeycomb-like through-hole structure and super-high oil–water separation efficiency and oil flux. After 10 cycles, the membrane showed good separation efficiency and flux. This innovative work may provide a new idea and method for the design of biomimetic biopolymers, with broad application prospects in the field of oil–water separation.

Anionic and cationic ring-opening polymerization of 2,2,4,4,6,6-hexamethyl-8,8-divinylcyclotetrasiloxane

Ring-opening polymerization (ROP) of 2,2,4,4,6,6-hexamethyl-8,8-divinylcyclotetrasiloxane (I) initiated by both l-fert-butyl-4,4,4-tris(dimetnylamino)-2,2-bis[tris(dimethylamino)phosphoran-yli denamino]-2λ5,4λ5-catenadi(phosphazene) (C22H63N13P4, P4-t-Bu Superbase) and trifluoromethanesulfonic acid (CF3SO3H, triflic acid) has been studied. Both reactions lead to mixtures of linear copolymer, low molecular weight co-oligomers and monomeric cyclosiloxanes. The composition, molecular weight distribution, microstructure, and thermal properties of the copolymers have been determined. The copolymer microstructure has been determined by 29Si NMR spectroscopy. Monomeric cyclosiloxanes have been identified by GC/MS. Both copolymer microstructure and cyclosiloxanes formed depend on the particular catalyst system utilized. P4-t-Bu superbase-initiated anionic ROP of I leads to a copolymer with a random microstructure and to a series of monomeric cyclotetra-, cyclopenta-, and cyclohexasiloxanes formed by random combination of dimethylsiloxane (D) and divinylsiloxane (V) units. On the other hand, triflic acid-initiated ROP of I occurs in a chemoselective manner. This leads to a copolymer with a more ordered microstructure. In this case, I is the only monomeric cyclosiloxane found.

Compound for organic light-emitting device packaging and preparation method and application thereof

The invention discloses a compound for organic light-emitting device packaging and a preparation method and application thereof, and belongs to the technical field of organic light-emitting device thin film packaging. Meanwhile, the invention further provides a composition prepared from one or more of a compound L, an allyl compound, a photopolymerization initiator and a free radical polymerization initiator, and when the composition is applied to organic light-emitting device packaging, a packaging film can show low transmittance of oxygen and moisture, the service life of an organiclight-emitting device is prolonged, and a packaging composition of an organic/inorganic mixed packaging film, the packaging thin film, and a display device using the same with higher flatness are obtained by enhancing the etching resistance of an organic layer to plasma.

Hydrosilylation of Allyl Ethers in the Presence of Platinum(II) Immobilized on Polymethylene Sulfide

The reactions of allyl ethyl, allyl butyl, allyl glycidyl, allyl benzyl, and allyl phenyl ethers with 1,1,3,3-tetra-methyldisiloxane in the presence of platinum(II) immobilized on polymethylene sulfide have been studied.

METHOF FOR PRODUCING HYDRIDOSILANES

The invention relates to a method for producing hydridosilanes, in which siloxanes containing Si—H groups are reacted in the presence of a cationic Si(II) compound as a catalyst.

Effect of catalyst structure on the reaction of α-methylstyrene with 1,1,3,3-tetramethyldisiloxane

Reaction of α-methylstyrene with 1,1,3,3-tetramethyldisiloxane in the presence of the complexes of platinum(II), palladium(II) and rhodium(I) is explored. It is established that in the presence of platinum catalyst predominantly occurs hydrosilylation of α-methylstyrene leading to formation of β-adduct, on palladium catalysts proceeds reduction of α-methylstyrene, on rhodium catalysts both the processes take place. In the reaction mixture proceeds disproportion and dehydrocondensation of 1,1,3,3-tetramethyldisiloxane that leads to formation of long chain linear and cyclic siloxanes of general formula HMe2Si(OSiMe2) n H and (-OSiMe2-)m (n = 2-6, m = 3-7), respectively. Platinum catalysts promotes formation of linear siloxanes, while both rhodium and palladium catalysts afford linear and cyclic siloxanes as well. Structure of intermediate metallocomplexes is studied.

Composition for separating mixtures

Therefore, there is provided herein in one specific embodiment a composition comprising: a) at least one silicone surfactant, and where silicone of silicone surfactant (a) has the general structure of: [in-line-formulae]Ma1Mb2Dc1Dd2Te1Tf2Qg; [/in-line-formulae][in-line-formulae]and, [/in-line-formulae][in-line-formulae]2≦(a+b+c+d+e+f+g)≦100; and, [/in-line-formulae] b) a mixture comprising an aqueous phase, a solid filler phase and optionally an oil phase that is substantially insoluble in said aqueous phase.

PROCESS FOR MAKING SI-H FUNCTIONAL SILOXANE OLIGOMER

The present invention relates to a method of making a Si-H functional siloxane oligomer from the reaction between silicon hydride compounds and cyclic siloxane oligomer in the presence of a Lewis acid that is capable of interacting with the hydrogen of th

Process for synthesis of diorganosilanes by disproportionation of hydridosiloxanes

The present invention provides a novel method for the preparation of diorganosilanes by disproportionation of a hydridosiloxanes comprising at least one terminal SiH group and at least one siloxane bond in the presence of Lewis acid catalysts. The reaction is both selective and occurs under mild conditions. The triaryl borane, tris(petafluorophenyl)borane, is especially suited for use as a catalyst in the reaction. Organic catalysts such as tris(pentafluorophenyl)borane are typically preferred owing to their greater solubility and stability in the reaction mixture, relative to inorganic Lewis acid catalysts. The product, diorganosilane may be isolated from the product mixture by conventional techniques such as distillation.