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Hexamethylcyclotrisiloxane (D3) is an important precursor for the production of silicone polymers, which are used in a wide range of applications, such as lubricants, adhesives, sealants, coatings, and medical devices.
Hexamethylcyclotrisiloxane (D3) is also used as a solvent and as a starting material for the synthesis of other organosilicon compounds.
Hexamethylcyclotrisiloxane (D3) is widely used as a building block for the synthesis of various silicon-based materials, including silicones, silanes, and silicone resins.
CAS Number : 541-05-9
Molecular Formula: C6H18O3Si3
Molecular Weight: 222.46
EINECS/List Number: 208-765-4
Hexamethylcyclotrisiloxane (D3), also known as D3, is a cyclic organosilicon compound with the chemical formula [(CH3)2SiO]3.
Hexamethylcyclotrisiloxane (D3) is a clear, colorless liquid that has a mild, pleasant odor.
Hexamethylcyclotrisiloxane (D3), is the simplest member of a series of cyclic oligodimethylsiloxanes, primarily used as synthetic equivalents for the reactive interme- diate dimethylsilanone.
Hexamethylcyclotrisiloxane (D3) is one of the main raw materials for silicone products.
Hexamethylcyclotrisiloxane (D3) is widely used in aviation, military industry, medicine and petrochemicals etc.Hexamethylcyclotrisiloxane undergoes ring-opening anionic polymerization reactions, suggesting use in polymer synthesis.
Hexamethylcyclotrisiloxane (D3) is also suggested for the treatment of powders and fillers to render them hydrophobic.Hexamethylcyclotrisiloxane mainly used for products of methyl vinyl silicone rubber.
Hexamethylcyclotrisiloxane (D3) is also the important raw materials for synthesizing other high polymers.
Hexamethylcyclotrisiloxane (D3) may be used as an effective trapping reagent for a variety of short-lived intermediates, including silanones and silyenes.Hexamethylcyclotrisiloxane has many unique characteristics.
The reaction of Hexamethylcyclotrisiloxane is more active, can be easily and quickly polymerized under lower temperature and simple catalysts.may be used to synthesize many kinds of organic silicone products, which have better stability, better insulation properties and better water resistance.
Hexamethylcyclotrisiloxane (D3) used to synthesize silicon rubber, which may has better elasticity, better abrasive resistance, and better corrosive resistance.
Hexamethylcyclotrisiloxane (D3) used to synthesize silicone oil, which may has lower freezing point and less surface tension, Hexamethylcyclotrisiloxane is slightly affected by temperature.
Hexamethylcyclotrisiloxane (D3) is flammable.
Hexamethylcyclotrisiloxane (D3) stable in closed containers under specified storage and handling conditions.
Although Hexamethylcyclotrisiloxane (D3) has low toxicity and is not classified as a hazardous substance, Hexamethylcyclotrisiloxane is still important to handle it with care and follow proper safety procedures, as with any chemical.
Hexamethylcyclotrisiloxane (D3) is a type of cyclic siloxane, which is a class of organosilicon compounds that contain a siloxane ring made up of alternating silicon and oxygen atoms.
Other common cyclic siloxanes include tetramethylcyclotetrasiloxane (D4) and octamethylcyclotetrasiloxane (D8).
Hexamethylcyclotrisiloxane (D3) has a boiling point of 134-135 °C and a melting point of -44 °C. It is soluble in a wide range of organic solvents, including acetone, ethanol, and toluene.
Hexamethylcyclotrisiloxane (D3) is use as a building block for silicone polymers, Hexamethylcyclotrisiloxane can also be used as a solvent, a surfactant, and a lubricant.
Hexamethylcyclotrisiloxane (D3) as been investigated as a potential fuel additive and as a component in liquid crystal displays.
Hexamethylcyclotrisiloxane (D3) is considered to have low toxicity and is not classified as a hazardous substance by major regulatory agencies.
However, like all chemicals, Hexamethylcyclotrisiloxane should be handled with care and appropriate safety measures should be followed when working with Hexamethylcyclotrisiloxane.
Hexamethylcyclotrisiloxane (D3) of D3 can be achieved through various methods, including the reaction of dimethylchlorosilane with water, the reaction of hexamethyldisiloxane with sulfuric acid, and the ring-opening polymerization of cyclic siloxanes.
Hexamethylcyclotrisiloxane (D3) is commonly used in the production of silicone-based personal care products, such as shampoos, conditioners, and lotions. It can also be used in the manufacture of medical devices, such as catheters and implants, due to its biocompatibility and low toxicity.
Hexamethylcyclotrisiloxane (D3) can be used in the synthesis of:
Polysiloxanes by anionic ring-opening polymerization.
Thin films by pulsed- plasma-enhanced chemical vapor deposition (PECVD) for the application of insulating biomaterials.
Dimethoxydimethylsilane by treating with dimethyl carbonate via deoligomerization using alkali metal hydroxide catalyst.
Hexamethylcyclotrisiloxane (D3) adopts a planar structure and is considered strained. Hexamethylcyclotrisiloxane reacts with organolithium reagents to give, after hydrolysis, dimethylsilanols: [(CH3)2SiO]3 + 3 RLi → 3 RSi(CH3)2OLi
RSi(CH3)2OLi + H2O → RSi(CH3)2OH + LiOH
Hexamethylcyclotrisiloxane is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.
Hexamethylcyclotrisiloxane (D3) is a white crystal with a melting point of 75°C and a shrinkage rate of 0.6-0.8%. It is used for the shrinkage treatment of silicone rubber.
Hexamethylcyclotrisiloxane (D3) is used in formulation or re-packing, at industrial sites and in manufacturing.
In terms of its chemical properties, D3 is highly stable and resistant to oxidation, making it useful for applications where a material needs to withstand harsh conditions.
Hexamethylcyclotrisiloxane also has a high flash point and low viscosity, which makes it easy to handle and process.
Chemical formula: [(CH3)2SiO]3
Molar mass: 222.462 g·mol−1
Appearance: Colorless or white solid
Density: 1.02 g/cm3
Melting point: 64 °C (147 °F; 337 K)
Boiling point: 134 °C (273 °F; 407 K)
Flash Point: 35°C
Heavy Atom Count: 12
Formal Charge: 0
Complexity:139
Solubility: water, 1.571 mg/L @ 25 °C (est)
Appearance: Colourless to white crystalline powder
SMILES: C[Si]1(O[Si](O[Si](O1)(C)C)(C)C)C
H-Bond Donor: 0
H-Bond Acceptor: 3
Safty Description: 26
Hazard Statement: sH228
Supplemental Hazard Statements: H228-H315-H319-H335
Vapor Pressure: 3.53 mmHg
Stability: Stable, but moisture sensitive. Incompatible with strong oxidizing agents. Highly flammable.
Refractive Index: 1.417
Precautionary Statements: P210; P240; P241; P280; P370+P378
Storage: Moisture Sensitive
Hexamethylcyclotrisiloxane (D3) is a colorless or white volatile solid.
Hexamethylcyclotrisiloxane (D3) finds limited use in organic chemistry.
The larger tetrameric and pentameric siloxanes, respectively octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, are of significant industrial interest, whereas 1,000–10,000 tonnes Per year of the trimer is manufactured and/or imported in the European Economic Area.
Hexamethylcyclotrisiloxane (D3) is considered to be a volatile organic compound (VOC), meaning it can evaporate easily into the air.
Hexamethylcyclotrisiloxane (D3) can contribute to the formation of ground-level ozone, which is a harmful air pollutant.
Hexamethylcyclotrisiloxane (D3), the use and emissions of D3 are regulated in some regions, and efforts are underway to reduce its environmental impact.
Uses
Hexamethylcyclotrisiloxane is primarily used as a starting material for the production of silicone polymers, which have a wide range of applications in industry, healthcare, and consumer products.
Hexamethylcyclotrisiloxane can be formulated into elastomers, rubbers, coatings, and adhesives.
Hexamethylcyclotrisiloxane is also used as a solvent for oils and fats, and as a cleaning agent for electronic components.
Hexamethylcyclotrisiloxane (D3), is the simplest member of a series of cyclic oligodimethylsiloxanes, primarily used as synthetic equivalents for the reactive interme- diate dimethylsilanone.
Hexamethylcyclotrisiloxane (D3) is one of the main raw materials for silicone products.
Hexamethylcyclotrisiloxane (D3) is widely used in aviation, military industry, medicine and petrochemicals etc.
Hexamethylcyclotrisiloxane (D3)undergoes ring-opening anionic polymerization reactions, suggesting use in polymer synthesis.
Hexamethylcyclotrisiloxane (D3) is also suggested for the treatment of powders and fillers to render them hydrophobic.
Hexamethylcyclotrisiloxane (D3) mainly used for products of methyl vinyl silicone rubber.
Hexamethylcyclotrisiloxane (D3) is so the important raw materials for synthesizing other high polymers.
Hexamethylcyclotrisiloxane (D3) may be used as an effective trapping reagent for a variety of short-lived intermediates, including silanones and silyenes.
Hexamethylcyclotrisiloxane (D3) has many unique characteristics.The reaction of It is more active, can be easily and quickly polymerized under lower temperature and simple catalysts.
Hexamethylcyclotrisiloxane (D3) may be used to synthesize many kinds of organic silicone products, which have better stability, better insulation properties and better water resistance.
Hexamethylcyclotrisiloxane (D3) may be used to synthesize silicon rubber, which may has better elasticity, better abrasive resistance, and better corrosive resistance.
Overall, hexamethylcyclotrisiloxane (D3) is a versatile and widely used compound with important applications in industry and research.
Hexamethylcyclotrisiloxane is unique properties and cyclic structure make it a valuable building block for the synthesis of a range of materials, and ongoing research is exploring new ways to use and improve this important compound.
Hexamethylcyclotrisiloxane (D3) industrial applications, Hexamethylcyclotrisiloxane is also used in research and development, particularly in the field of materials science.
Hexamethylcyclotrisiloxane is cyclic structure allows Hexamethylcyclotrisiloxane to easily form stable compounds with other organic and inorganic molecules, making it a useful building block for the synthesis of advanced materials.
Hexamethylcyclotrisiloxane (D3) has several industrial applications, such as in the production of sealants, adhesives, and coatings, as well as in the manufacture of silicone rubber products, such as gaskets and tubing.
Hexamethylcyclotrisiloxane (D3) is also used in the electronics industry as a heat transfer fluid and as a component of silicon-based electronic materials.
Hexamethylcyclotrisiloxane (D3) is used in the manufacture of methyl vinyl silicone rubber products, and is also an important raw material for synthesizing other polymer compounds
Hexamethylcyclotrisiloxane (D3), synthesizing general organosilicon polymers, Hexamethylcyclotrisiloxane can also be used to prepare specific organosilicon compounds, such as various surface treatment agents, coupling agents, crosslinking agents, etc.
Hexamethylcyclotrisiloxane (D3) is used in the following products: laboratory chemicals and polymers.
Hexamethylcyclotrisiloxane (D3) has an industrial use resulting in manufacture of another substance (use of intermediates).
Hexamethylcyclotrisiloxane (D3) is used in the following areas: scientific research and development.
Hexamethylcyclotrisiloxane (D3) is used for the manufacture of: chemicals.
Release to the environment of Hexamethylcyclotrisiloxane (D3) can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates), for thermoplastic manufacture, in processing aids at industrial sites, as processing aid and of substances in closed systems with minimal release.
Chemical Properties:
Hexamethylcyclotrisiloxane (D3) is a cyclic trisiloxane with six Si-O bonds and three Si-Si bonds.
Hexamethylcyclotrisiloxane (D3) has a molecular weight of 222.4 g/mol and a boiling point of 134°C.
Hexamethylcyclotrisiloxane (D3) is soluble in most organic solvents, but insoluble in water.
Hexamethylcyclotrisiloxane (D3) is a stable compound and does not react with most reagents under normal conditions.
Environmental Concerns:
Hexamethylcyclotrisiloxane (D3) has been identified as a potential environmental hazard due to Hexamethylcyclotrisiloxane (D3) toxicity to aquatic life and its persistence in the environment. Hexamethylcyclotrisiloxane (D3) has been found to be bioaccumulative in fish and other organisms, which can lead to harmful effects on the ecosystem.
Hexamethylcyclotrisiloxane (D3), some countries have restricted the use of Hexamethylcyclotrisiloxane (D3) and other cyclic siloxanes in consumer products.
Regulations:
Hexamethylcyclotrisiloxane (D3) is regulated by various national and international organizations.
The European Union has classified Hexamethylcyclotrisiloxane (D3) as a Substance of Very High Concern (SVHC) under the REACH regulation due to its potential to cause harm to human health and the environment.
The US Environmental Protection Agency (EPA) has also identified Hexamethylcyclotrisiloxane (D3) as a hazardous air pollutant, and it is regulated under the Clean Air Act. Other countries, such as Canada and Japan, have also implemented restrictions on the use of Hexamethylcyclotrisiloxane (D3) in certain applications.
Production:
Hexamethylcyclotrisiloxane (D3) is produced by the reaction of hexamethyldisiloxane with water or an acid catalyst.
Hexamethylcyclotrisiloxane (D3) can also be produced by the hydrolysis of trichlorosilane or the thermal decomposition of other organosilicon compounds.
Hexamethylcyclotrisiloxane (D3) is commercially available as a high-purity liquid or as a component of silicone fluids and resins.
Chemical Stability: Hexamethylcyclotrisiloxane (D3), stable in closed containers under specified storage and handling conditions.
Conditions to Avoid: Hexamethylcyclotrisiloxane (D3), ıncompatible materials, any sources of ignition or heat, exposure to moist air or water.
Incompatibilities with Other Materials:Hexamethylcyclotrisiloxane (D3), strong oxidizing agents.
Hazardous Decomposition Products: Hexamethylcyclotrisiloxane (D3), in case of a fire, oxides of carbon, hydrocarbons, silicon oxide, fumes, and smoke may be generated by thermal decomposition or combustion.
Hazardous Polymerization: Hexamethylcyclotrisiloxane (D3), will not occur.
Storage and Handling:
Hexamethylcyclotrisiloxane (D3) should be stored in a cool, dry, and well-ventilated area away from sources of heat and ignition.
Hexamethylcyclotrisiloxane (D3) should be stored in airtight containers to prevent evaporation and contamination.
Hexamethylcyclotrisiloxane (D3) should be handled with care to prevent spills and contact with skin, eyes, or clothing.
In case of Hexamethylcyclotrisiloxane (D3), Hexamethylcyclotrisiloxane (D3) is recommended to rinse affected areas with plenty of water and seek medical attention if necessary.
Shelf life:
The shelf life of Hexamethylcyclotrisiloxane (D3) is 6 months.
After the expiration date, it can be re-inspected against the indicators of this standard.
When the inspection results meet the requirements of this standard, Hexamethylcyclotrisiloxane (D3) can still be used.
Synonyms
HEXAMETHYLCYCLOTRISILOXANE
541-05-9
Cyclotrisiloxane, hexamethyl-
2,2,4,4,6,6-Hexamethyl-1,3,5,2,4,6-trioxatrisilinane
Dimethylsiloxane cyclic trimer
C6H18O3Si3
CCRIS 1326
SDK 10
UNII-EPV75L8O0R
EINECS 208-765-4
AI3-62005
Hexamethylcyclohexasiloxane
MFCD00005943
EPV75L8O0R
Cyclotrisiloxane, 2,2,4,4,6,6-hexamethyl-
J-200100
25084-99-5
DC 246
LS 8120
EC 208-765-4
Hexamethylcyclotrisiloxane d3
SCHEMBL29235
DTXCID307185
Hexamethylcyclotrisiloxane, 98%
CHEMBL3182063
HTDJPCNNEPUOOQ-UHFFFAOYSA-
CHEBI:189167
DTXSID501337639
Tox21_303233
CH7260
AKOS008901190
ZINC169743111
NCGC00164098-01
NCGC00257091-01
AS-14775
CAS-541-05-9
Hexamethyl-1,3,5,2,4,6-trioxatrisilinane
FT-0627018
H0725
2-(boc-amino)-2-(4-hydroxyphenyl)aceticacid
Hexamethylcyclotrisiloxane, analytical standard
H11267
S09550
A923449
Q26840948
2,2,4,4,6,6-Hexamethyl-1,3,5,2,4,6-trioxatrisilinane
