Silicone oil molecular formula-Silicone oil - Wikipedia

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Silicone oil molecular formula

Silicone oil molecular formula

Silicone oil molecular formula

Chemical Properties It is milk-white viscous liquid and is non-volatile and odorless. Their temperature stability and good heat-transfer characteristics Silicohe them widely used in Silicone oil molecular formula for heating baths "oil baths" placed on top of hotplate stirrersas well as molecu,ar freeze-dryers as refrigerants. Like all siloxanes e. Dimethyl silicone is non-toxic with physiologically inertia and can be used for the Silicone oil molecular formula of flatulence and can also play a role of skin care when added to cosmetics. It is an excellent kind of anti-foaming agent with small usage amount and significant efficacy. The low viscosity silicone moleculad is easily to be dispersed to exhibit anti-foaming property, however with large solubility and poor anti-foam persistence; high viscosity Girly myspace quote oil has a poor anti-foaming property but excellent continuity. Retrieved 25 October Hazard Low toxicity by ingestion.

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Silicone Barbie twins tits is made from Si-O chain and organic compound. This chemistry is used in many consumer applications, such as silicone caulk and adhesives. Popular searches by subject. It is also used as defoamers, mold releasing agents and the polishing agent of furniture, flooring, and automobile polish as well as the internal lubricants upon plastic processing. Aerospace use includes the external coolant loop and radiators of the International Space Station Zvezda modulewhich rejects heat in the vacuum of space. Although organic substituents are attached…. Silicone rubber is commonly used in baby bottle nipples teats for its cleanliness, aesthetic appearance, and low extractable content. Hurkes, M. As a result, silicones are remarkably stable, and they have the Silicone oil molecular formula glass-transition temperature the temperature below which the molecules are locked in a rigid, glassy state and the highest permeability to gases of any polymer. Poor dispersion will result in poor anti-foam effect. By varying the —Si—O— chain lengths, side groups, and crosslinkingsilicones can be synthesized with a wide Silicone oil molecular formula of properties and compositions.

CAS No.

  • CAS No.
  • Silicone , also called polysiloxane , any of a diverse class of fluids, resins , or elastomers based on polymerized siloxanes, substances whose molecules consist of chains made of alternating silicon and oxygen atoms.
  • Silicones , also known as polysiloxanes , are polymers that include any synthetic compound made up of repeating units of siloxane , which is a chain of alternating silicon atoms and oxygen atoms, combined with carbon , hydrogen , and sometimes other elements.
  • A silicone oil is any liquid polymerized siloxane with organic side chains.

CAS No. Request For Quotation. The username will be used as the login user name and retrieve the password. Properties Safety Price 43 Uses Suppliers Incompatible with strong oxidizing agents. Silicone oil Chemical Properties,Uses,Production Oily linear polysiloxane Silicone oil is a kind of oily linear polysiloxane produced from the hydrolysis and poly-condensation of chlorotrimethylsilane, ethyl chlorosilane, and phenyl chlorosilane containing mono-functional group and bifunctional group.

The commonly called silicone oil means the polydimethylsiloxane and polymethyl phenyl siloxane. Silicone oil is a kind of colorless, odorless, non-toxic, transparent, non-volatile liquid with non-corrosive effect on metal, low freezing point and good anti-water property and moisture resistance, low surface tension and being capable of being resistant to dilute acids and bases and has wide application in various national economy departments.

The viscosity of the silicone oil has small changes with temperature. When being mixed with thickener such as carbon black and lithium stearate, it can be used for preparation of viscous grease for being applied to vacuum or high temperature sealing systems and the sealing of vacuum cocks, bushings, and valve.

It will not be cured by high compression with a relative high compressibility and can be used as liquid springs of aircraft and used for eliminating flutter in the buffer, shock absorption system to maintain the stability of the gauge pointer in aircraft cabin and damping of damper device. It is permeable to visible light and can be coated to the lens and optical glass to improve the light transmission properties; its being coated to the motion picture film can reduce the friction and extend the lifespan of the film.

It has a good water resistance and can be used for processing wool, rayon, nylon, cotton fabric and can be used for making waterproof fabric; it has a low surface tension and can be used for plastic and rubber mold releasing agents; in the food and textile industry, it can be used in defoamers. Dimethyl silicone is non-toxic with physiologically inertia and can be used for the treatment of flatulence and can also play a role of skin care when added to cosmetics. Product Features Silicone oil having a silica structure and is liquid at room temperature and is called as siloxane, referred as silicone oils.

The simplest polydimethylsiloxane is as formula [1]. It is a linear polymer of a low molecular weight. If R1 and R2 are not a methyl group, then it is not related to this article. Silicone oil is a colorless or light yellow transparent liquid and is odorless and tasteless.

It has a high boiling point and low freezing point. The silicon-oxygen bond is very stable. Organic silicone oil Silicone oil is also known as organic silicone oil. They are one kind of silicone polymers. It is made through hydrolysis of organic silicon with mono-functional group or bifunctional group to form the corresponding mono-, di-silanol with silanol further interacting with each other under acidic conditions to form the cyclic or chain-like polymers, which are further subject to poly-condensation reaction at atmospheric pressure and vacuum conditions to produce silicone oil with certain molecule weight.

Silicone oil is an organic compound with closed end groups; it has the structure formula as follows: Wherein R1, R2, R3 may be the either same of different organic groups such as methyl, ethyl, phenyl, vinyl, methoxy, ethoxy, and hydrogen. Those different groups result in different kind of silicone oil.

Silicone oil is a colorless, oily substance with its viscosity being able to be formulated as well as having a relatively low freezing temperature. It also has high thermal stability and is not subject to decomposition at high temperature. It has a low surface tension and is non-toxic. Low molecular weight silicone oil can be taken as Newtonian fluids with gradually shifting toward pseudoplastic fluids upon increasing molecular weight.

Silicone oil has a low vapor pressure and high compressibility. It has no corrosion on the metal and is very stable against the vast majority of organic reagents. It has good compatibility with mineral oil and is resistant to dilute acid and alkali. Silicone oil is often used as advanced lubricants, anti-shock oil and insulating oil.

It is also used as defoamers, mold releasing agents and the polishing agent of furniture, flooring, and automobile polish as well as the internal lubricants upon plastic processing. It also serves as a heat carrier, anti-vibration damping materials, cosmetics additives, medical polymer materials and glass fiber processing agents.

The above information is edited by the Chemicalbook of Dai Xiongfeng. Transformer insulating oil Silicone oil is an excellent kind of transformer insulating oil with high heat resistance and high flash point.

Silicone oil can tolerate electric arc, corona. In addition, it also has good viscosity-temperature, low freezing point, and low volatility and is non-toxic without contaminating the environment and so on.

Currently the silicone oil variety frequent application and good efficacy is "polydimethylsiloxane. So it should be tightly sealed during the application process. In addition, it is also necessary to take measures to prevent moisture and air intrusion. Silicone oil for lubricating oil It can be used as the anti-foam agents for oil as well as for synthesizing lubricating oil. Silicone oil is made from Si-O chain and organic compound.

It is a kind of odorless, tasteless organic liquid with a high chemical stability, low freezing point, low volatility and excellent anti-oxidation property and resistance to high temperature.

It has been over 50 years since at early time when polydimethylsiloxane referred as silicone oil was used as an anti-foaming agent. Only if the silicone oil in the lubricating oil is in its insoluble state can it have anti-foaming.

In contrast, if it is in a dissolved state, it not only has no anti-foaming property but also plays a role of foaming agent. Therefore, it is very important to choose silicone oil with proper viscosity. The low viscosity silicone oil is easily to be dispersed to exhibit anti-foaming property, however with large solubility and poor anti-foam persistence; high viscosity silicone oil has a poor anti-foaming property but excellent continuity.

In order to draw on the strength of each other, people often mix two kinds of high and low viscosity silicone oil for using in combination. Methyl silicone oil is produced from the following process: methyl chloride is first reacted with silicon in the presence of copper as the catalyst for generating into chloromethyl silane mixture. Then we further obtain methyl silane through hydrolysis; the methyl silane is further polymerized to obtain methyl with either acid or alkali catalyst.

It is an excellent kind of anti-foaming agent with small usage amount and significant efficacy. It has wide applications and is commonly used in internal combustion engine oils and industrial lubricants. For highly dispersing it in the oil, first dissolve the silicone oil in a solvent such as kerosene into the concentrate liquid, and then stir and disperse it into the oil. Poor dispersion will result in poor anti-foam effect. Therefore, silicone oil anti-foaming agent is very sensitive to the blending technology.

Chemical Properties It is milk-white viscous liquid and is non-volatile and odorless. It has a relative density of O. It is miscible with benzene, gasoline and other kinds of chlorinated hydrocarbons, aliphatic and aromatic hydrocarbons; it is not soluble in methanol, ethanol and water, but can be dispersed in water. It is Non-flammable, non-corrosive and is chemically stable.

Uses It can be used as emulsifiers. China has provided that it can be applied during the fermentation process with the maximum usage amount being 0. It can be used as advanced lubricants, anti-vibration oil, insulating oil, defoamers, release agents, polishes and vacuum diffusion pump oil.

It can be used as the paint for prevention of moisture and rust of metal surface. It can also be used as the coating for the surfaces of buildings for prevention of water. It is used as hardening polyurethane foams additive.

Production method The Poly methyl siloxane and gas-phase silicon dioxide are mixed and crushed using roller to silica grease, then add polyoxyethylene alcohol, Tween 80 and deionized water for emulsion to generate it.

Chemical Properties viscous colourless liquid Uses Liquid Adhesives, lubricants, protective coat- ings, coolants, mold release agents, dielectric fluids, heat transfer, wetting agents and surfac- tants, foam stabilizer for polyurethanes, diffusion pumps, antifoaming agent for liquids, textile fin- ishes, water repellent, weatherproofing concrete, brake fluids, cosmetic items, polishes, foam shields in solar energy collectors, rust preventives.

Resin Coatings, molding compounds, laminates with glass cloth , filament winding sealants, room- temperature curing cements, electrical insulation, impregnating electric coils, bonding agent, modifier for alkyd resins, vibration-damping devices.

Elas- tomer, or silicone rubber Encapsulation of elec- tronic parts; electrical insulation; gaskets; surgical membranes and implants; automobile engine com- ponents; flexible windows for face masks, air locks, etc. Definition Any of a large group of siloxane polymers based on a structure consisting of alternate silicon and oxygen atoms with various organic radicals attached to the silicon: Safety Profile An experimental teratogen.

Experimental reproductive effects. Silicone oil structure. Shenzhen Sendi Biotechnology Co. Hangzhou Bayee Chemical Co. Henan Tianfu Chemical Co. Mainchem Co. Hangzhou FandaChem Co. Chemwill Asia Co. Silicone oil

Archived from the original on BOC Sciences. Many fabrics can be coated or impregnated with silicone to form a strong, waterproof composite such as silnylon. The username will be used as the login user name and retrieve the password. The resultant unstable compound, silanol [CH 3 ] 2 Si[OH] 2 , polymerizes in a condensation reaction , the single-unit molecules linking together to form poly-dimethylsiloxane with concomitant loss of water. Indeed, this oil has very interesting properties as well as uses.

Silicone oil molecular formula

Silicone oil molecular formula

Silicone oil molecular formula. Fast registration

The username will be used as the login user name and retrieve the password. Properties Safety Price 8 Uses Suppliers Storage temperature: no restrictions. Immiscible with water, methanol and ethylene glycol.

Hazard Low toxicity by ingestion. A mild eye irritant. Henan Tianfu Chemical Co. A silicone oil is any liquid polymerized siloxane with organic side chains. These polymers are of commercial interest because of their relatively high thermal stability and their lubricating properties. Like all siloxanes e. Many groups can be attached to the tetravalent silicon centres, but the dominant substituent is methyl or sometimes phenyl. Many silicone liquids are linear polymers end-capped with trimethylsilyl groups.

Other silicone liquids are cyclosiloxanes. Silicone oils are primarily used as lubricants , thermic fluid oils or hydraulic fluids. They are excellent electrical insulators [2] and, unlike their carbon analogues, are non- flammable. Their temperature stability and good heat-transfer characteristics make them widely used in laboratories for heating baths "oil baths" placed on top of hotplate stirrers , as well as in freeze-dryers as refrigerants.

Silicone oil is also commonly used as the working fluid in dashpots , wet-type transformers , diffusion pumps and in oil-filled heaters. Aerospace use includes the external coolant loop and radiators of the International Space Station Zvezda module , which rejects heat in the vacuum of space. The class of silicone oils known as cyclosiloxanes has many of the same properties as other non-cyclic siloxane liquids but also has a relatively high volatility , making it useful in a number of cosmetic products such as antiperspirant.

Some silicone oils, such as simethicone , are potent anti-foaming agents due to their low surface tension. They are used in industrial applications such as distillation or fermentation , where excessive amounts of foam can be problematic. They are sometimes added to cooking oils to prevent excessive foaming during deep frying.

A silicone oil is any liquid polymerized siloxane with organic side chains. These polymers are of commercial interest because of their relatively high thermal stability and their lubricating properties.

Like all siloxanes e. Many groups can be attached to the tetravalent silicon centres, but the dominant substituent is methyl or sometimes phenyl.

Many silicone liquids are linear polymers end-capped with trimethylsilyl groups. Other silicone liquids are cyclosiloxanes. Silicone oils are primarily used as lubricants , thermic fluid oils or hydraulic fluids. They are excellent electrical insulators [2] and, unlike their carbon analogues, are non- flammable.

Their temperature stability and good heat-transfer characteristics make them widely used in laboratories for heating baths "oil baths" placed on top of hotplate stirrers , as well as in freeze-dryers as refrigerants. Silicone oil is also commonly used as the working fluid in dashpots , wet-type transformers , diffusion pumps and in oil-filled heaters. Aerospace use includes the external coolant loop and radiators of the International Space Station Zvezda module , which rejects heat in the vacuum of space.

The class of silicone oils known as cyclosiloxanes has many of the same properties as other non-cyclic siloxane liquids but also has a relatively high volatility , making it useful in a number of cosmetic products such as antiperspirant.

Some silicone oils, such as simethicone , are potent anti-foaming agents due to their low surface tension. They are used in industrial applications such as distillation or fermentation , where excessive amounts of foam can be problematic.

They are sometimes added to cooking oils to prevent excessive foaming during deep frying. Silicone oils used as lubricants can be inadvertent defoamers contaminants in processes where foam is desired, such as in the manufacture of polyurethane foam. Silicone oil is also one of the two main ingredients in Silly Putty , along with boric acid. Consumer products to control flatulence often contain silicone oil.

Silicone oils have been used as a vitreous fluid substitute to treat difficult cases of retinal detachment, such as those complicated with proliferative vitreoretinopathy , large retinal tears, and penetrating ocular trauma. Because of silicone oil's water repellent and lubricating properties, it is considered an appropriate material to maintain surgical instruments.

Silicone oil has been commonly used as the fluid in the automobile cooling fan clutch assemblies, and is still being used in the newer electronic fan clutches. From Wikipedia, the free encyclopedia.

Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. Retrieved 25 October J Anal Appl Pyrolysis. Bibcode : JAP Categories : Silicones Siloxanes. Namespaces Article Talk. Views Read Edit View history. By using this site, you agree to the Terms of Use and Privacy Policy.

Silicone oil molecular formula

Silicone oil molecular formula