Quick Search
CAS NUMBER: 9006-65-9 / 107-51-7
EC NUMBER: 203-497-4
MOLECULAR FORMULA: C8H24O2Si3
MOLECULAR WEIGHT: 236.53
IUPAC NAME: dimethyl-bis(trimethylsilyloxy)silane
Dimethiconealso known as polydimethylsiloxane, is a substance that comes from silicone.
Dimethicone comes from silica, which is a natural compound present in sand, sandstone, granite, and quartz.
Dimethicone is an organosiloxane that is trisiloxane in which all the hydrogens have been replaced by methyl groups.
Manufacturers produce silicone by heating sand with carbon at very high temperatures, up to 2,200°C (3,992°F).
As a result, Dimethicone is hard to classify whether ingredients such as dimethicone are natural or laboratory-made.
Many cosmetic product contain Dimethicone.
Dimethicone alters the texture of formulas so that they have a silky, velvety feel.
Dimethicone is odorless, colorless, hypoallergenic
Dimethicone is also noncomedogenic
Dimethicone is a type of silicone.
Dimethicone is a popular ingredient in many cosmetics, such as skin and hair care products, because it smooths over rough surfaces and has a velvety texture.
Dimethicone also forms a protective barrier on the skin, decreasing the loss of moisture
Dimethicone providing some protection from irritants or allergens.
People can find dimethicone on the label of many products, including:
-moisturizers
-sunscreens
-fake tanners
-shampoos and conditioners
-detangling products
-head lice removal products
-makeup, such as primers and foundation
-sexual lubricants
Dimethicone also has medical uses.
Some medications for flatulence or irritable bowel syndrome may contain simethicone, which is a mix of silica gel and dimethicone.
This can help relieve trapped wind and bloating.
BENEFITS FOR SKIN AND HAIR:
Dimethicone has several properties that make it useful for skin and hair products.
Dimethicone forms a barrier: Dimethicone sits on top of the skin and hair, forming a temporary barrier.
This means it provides some protection against contact with irritants or allergens.
Dimethicone maintains moisture: By forming a barrier over the skin, dimethicone also reduces the amount of water the skin loses.
Dimethicone improves texture: Dimethicone smooths surfaces by filling in crevices.
This includes large pores and fine lines. In hair products, dimethicone coats the cuticle of the hair, making it feel smoother.
Dimethicone also makes the texture of products more “slippy,” allowing for easier application.
Dimethicone gives a matte finish: Primers and moisturizers for oily skin often contain dimethicone because it has a matte finish.
Dimethicone also helps to seal in moisture without the need for heavier ingredients, such as oils and butters, which can be comedogenic (can block pores).
Dimethicone also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones.
Dimethicone is the most widely used silicon-based organic polymer, as its versatility and properties lead to many applications.
Dimethicone is particularly known for its unusual rheological (or flow) properties.
Dimethicone is optically clear and, in general, inert, non-toxic, and non-flammable.
Dimethicone is one of several types of silicone oil (polymerized siloxane).
Dimethicone's applications range from contact lenses and medical devices to elastomers
Dimethicone is also present in shampoos (as it makes hair shiny and slippery), food (antifoaming agent), caulk, lubricants and heat-resistant tiles.
APPLICATIONS:
Surfactants and antifoaming agents
Dimethicone is a common surfactant and is a component of defoamers.
Dimethicone, in a modified form, is used as an herbicide penetrant and is a critical ingredient in water-repelling coatings, such as Rain-X.
Hydraulic fluids and related applications
Dimethicone is used in the active silicone fluid in automotive viscous limited slip differentials and couplings.
Daytime radiative cooling
Dimethicone is a common surface material used in passive daytime radiative cooling as a broadband emitter that is high in solar reflectivity and heat emissivity.
Many tested surfaces use Dimethicone because of its potential scalability as a low-cost polymer.
As a daytime radiative cooling surface, Dimethicone has also been tested to improve solar cell efficiency.
Soft lithography
Further information: Photopolymer
Dimethicone is commonly used as a stamp resin in the procedure of soft lithography, making it one of the most common materials used for flow delivery in microfluidics chips.
The process of soft lithography consists of creating an elastic stamp, which enables the transfer of patterns of only a few nanometers in size onto glass, silicon or polymer surfaces.
With this type of technique, it is possible to produce devices that can be used in the areas of optic telecommunications or biomedical research.
The stamp is produced from the normal techniques of photolithography or electron-beam lithography.
The resolution depends on the mask used and can reach 6 nm.
Medicine and cosmetics
Activated dimethicone, a mixture of polydimethylsiloxanes and silicon dioxide (sometimes called simethicone), is often used in over-the-counter drugs as an antifoaming agent and carminative.
Dimethicone also works as a moisturizer that is lighter and more breathable than typical oils.
Silicone breast implants are made out of a Dimethicone elastomer shell, to which fumed amorphous silica is added, encasing PDMS gel or saline solution.
The use of Dimethicone in the manufacture of contact lenses was patented (later abandoned)
Skin
Dimethicone is used variously in the cosmetic and consumer product industry as well.
For example, dimethicone is used widely in skin-moisturizing lotions where it is listed as an active ingredient whose purpose is "skin protection."
Some cosmetic formulations use dimethicone and related siloxane polymers in concentrations of use up to 15%.
Hair
Dimethicone compounds such as amodimethicone, are effective conditioners when formulated to consist of small particles and be soluble in water or alcohol/act as surfactants (especially for damaged hair[36]), and are even more conditioning to the hair than common dimethicone and/or dimethicone copolyols.
Contact lenses
A proposed use of Dimethicone is contact lens cleaning.
Dimethicone's physical properties of low elastic modulus and hydrophobicity have been used to clean micro and nano pollutants from contact lens surfaces more effectively than multipurpose solution and finger rubbing; the researchers involved call the technique PoPPR (polymer on polymer pollution removal) and note that it is highly effective at removing nanoplastic that has adhered to lenses.
As anti-parasitic
Dimethicone is effective for treating lice in humans.
This is thought to be due not to suffocation (or poisoning), but to its blocking water excretion, which causes insects to die from physiological stress either through prolonged immobilisation or disruption of internal organs such as the gut.
Dimethicone is the active ingredient in an anti-flea preparation sprayed on a cat, found to be equally effective to a widely used more toxic pyriproxifen/permethrin spray.
The parasite becomes trapped and immobilised in the substance, inhibiting adult flea emergence for over three weeks.
Foods
Dimethicone is added to many cooking oils (as an anti-foaming agent) to prevent oil splatter during the cooking process.
Condom lubricant
Dimethicone is widely used as a condom lubricant.
Domestic and niche uses
Dimethicone is also used as a component in silicone grease and other silicone based lubricants, as well as in defoaming agents, mold release agents, damping fluids, heat transfer fluids, polishes, cosmetics, hair conditioners and other applications.
Dimethicone can be used as a sorbent for the analysis of headspace (dissolved gas analysis) of food
Dimethicone is a silicone-based ingredient used in many personal care products.
Dimethicone keeps all of the ingredients in a product from separating.
Dimethicone also gives these products a smooth, silky texture.
When applied to the skin or hair, dimethicone creates a physical barrier to seal in hydration, keeping skin moisturized and hair frizz-free.
In cosmetics, dimethicone helps to fill in fine lines and wrinkles
Dimethicone helps your makeup look even rather than cakey, and gives it a matte finish.
Dimethicone is also noncomedogenic, meaning it won’t clog pores.
Dimethicone is a silicone-based polymer that is frequently used as a skin protectant in skincare products.
The second most common moisturizing ingredient found in moisturizers after petrolatum, dimethicone helps condition the skin—improving its softness and flexibility.
Dimethicone (also called polymethylsiloxane) is a silicon-based polymer used as a lubricant and conditioning agent.
Dimethicone, which is also known as polydimethylsiloxane, is a type of silicone, one of the most widely used in cosmetics, haircare and skincare
Dimethicone is a fluid mixture of fully methylated linear siloxane polymers end-blocked with trimethylsiloxy units.
Dimethicone is a linear monomethyl polysiloxane.
Dimethicones are clear, colorless liquids available in various viscosities.
Dimethicone is a fluid mixture of fully methylated linear siloxane polymers end-blocked with trimethylsiloxy units.
Dimethicone is a linear monomethyl polysiloxane.
Dimethicone are safe as used in cosmetic formulations, vulcanization.
USES:
A silicone oil consisting of a mixture of fully methylated linear siloxane polymers end-blocking with trimethylsiloxy units.
Dimethicone commonly used in skin and hair products.
Dimethicone is a form of silicone used to give products lubricity, slip, and good feel.
Dimethicone can also serve as a formulation defoamer and help reduce the feeling of greasiness that some creams leave on the skin immediately upon application.
In addition, Dimethicone is reported to protect the skin against moisture loss when used in larger quantities.
Dimethicone improves product flow and spreadability.
In combination with other ingredients, dimethicone becomes a good waterproofing material for sunscreen emulsions, and helps reduce the greasiness often seen in high-SPF preparations.
Dimethicone is soluble in aliphatic hydrocarbons and aromatic hydrocarbons
Dimethicone is insoluble in alcohol or water.
PHYSICAL PROPERTIES:
-Molecular Weight: 236.53
-Exact Mass: 236.10840961
-Monoisotopic Mass: 236.10840961
-Topological Polar Surface Area: 18.5 Ų
-Compound Is Canonicalized: Yes
-Physical Description: Colorless odorless liquid
-Density: 0.940 g/cu m
-Vapor Pressure: 3.34 mmHg
-Viscosity: 10 cu mm/S
-Surface Tension: 20.0 dyne/cm
-Boiling Point: 153.00 °C
-Vapor Pressure: 4.359000 mmHg
-Flash Point: 131.00 °F
-logP (o/w): 3.646
-Solubility in water: 5.428e-007 mg/L
Dimethicone is an organosiloxane that is trisiloxane in which all the hydrogens have been replaced by methyl groups.
Dimethicone is odorless, colorless, hypoallergenic
Dimethicone is also noncomedogenic
Dimethicone is a type of silicone.
Dimethicone is a popular ingredient in many cosmetics, such as skin and hair care products, because it smooths over rough surfaces and has a velvety texture.
Dimethicone also forms a protective barrier on the skin, decreasing the loss of moisture
CHEMICAL PROPERTIES:
-Hydrogen Bond Donor Count: 0
-Hydrogen Bond Acceptor Count: 2
-Rotatable Bond Count: 4
-Heavy Atom Count: 13
-Formal Charge: 0
-Complexity: 149
-Isotope Atom Count: 0
-Defined Atom Stereocenter Count: 0
-Undefined Atom Stereocenter Count: 0
-Defined Bond Stereocenter Count: 0
-Undefined Bond Stereocenter Count: 0
-Covalently-Bonded Unit Count: 1
-Chemical Classes: Metals -> Metalloid Compounds (Silicon)
Dimethicone also has medical uses.
Dimethicone also helps to seal in moisture without the need for heavier ingredients, such as oils and butters, which can be comedogenic (can block pores).
Dimethicone also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones.
Dimethicone is a common surfactant and is a component of defoamers.
Dimethicone is used in the active silicone fluid in automotive viscous limited slip differentials and couplings.
Dimethicone is widely used as a condom lubricant.
Dimethicone is a silicone-based ingredient used in many personal care products.
Dimethicone is also noncomedogenic, meaning it won’t clog pores.
Dimethicone is a silicone-based polymer that is frequently used as a skin protectant in skincare products.
Dimethicones are clear, colorless liquids available in various viscosities.
Dimethicone is a linear monomethyl polysiloxane.
Dimethicone is soluble in aliphatic hydrocarbons and aromatic hydrocarbons
Dimethicone is insoluble in alcohol or water.
SYNONYMS:
dimethyl polysiloxane
dimethyl polysiloxane, bis(trimethylsilyl)-terminated
dimethyl-bis(trimethylsilyloxy)silane
dimeticonum
octamethyltrisiloxane
PDMS
pentamethyl(trimethylsilyloxy)disiloxane
polysilane
trisiloxane, 1,1,1,3,3,5,5,5-octamethyl-
SILCOREL(R) ADP1000 ANTIFOAM COMPOUND
SILICONE OIL DC 200
SILICONE FLUID
REDUCED VOLATILITY POLYDIMETHYLSILOXANE
POLYDIMETHYLSILOXANE 158'000
POLYDIMETHYLSILOXANE 16'000
POLYDIMETHYLSILOXANE 173'000
POLYDIMETHYLSILOXANE 1'850
OCTAMETHYLTRISILOXANE
107-51-7
Trisiloxane, octamethyl-
Poly(dimethylsiloxane)
1,1,1,3,3,5,5,5-Octamethyltrisiloxane
Dimeticone
dimethyl-bis(trimethylsilyloxy)silane
Dimethicone 350
63148-62-9
Pentamethyl(trimethylsilyloxy)disiloxane
Dimethylbis(trimethylsiloxy)silane
Trisiloxane, 1,1,1,3,3,5,5,5-octamethyl-
Dimethylbis(trimethylsilyloxy)silane
Dimethicones
Poly(dimethylsiloxane), hydroxy terminated
CCRIS 3198
Poly(dimethylsiloxane), trimethylsiloxy terminated
EINECS 203-497-4
dimeticonum
Dimeticona
FRD 20
Ctamethyltrisiloxane
MFCD00008264
Pentamethyl(trimethylsiloxy)disiloxane
octamethyl-trisiloxane
PDMS
dimethicone macromolecule
EC 203-497-4
Octamethyltrisiloxane, 98%
Siliconoil Pharma 100 cSt.
Dimethyl polysiloxane, bis(trimethylsilyl)-terminated
OCTAMETHYLTRISILOXANE [MI]
dimethylbis(trimethylsiloxy)siliane
Polydimethylsiloxane, 1000 cSt.
alpha-(Trimethylsilyl)-omega-methylpoly(oxy(dimethylsilylene))
[(CH3)3SiO]2Si(CH3)2
Silane, dimethylbis(trimethylsiloxy)-
Poly(dimethylsiloxane), viscosity 1.0 cSt (25 C)
XIAMETER(R) PMX-200 Silicone Fluid 20 CS
2,2,4,4,6,6-hexamethyl-3,5-dioxa-2,4,6-trisilaheptane
Polydimethylsiloxane
