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Disiloxane can also be used as a solvent to help deliver other ingredients to skin.
When used in cosmetic formulas, Disiloxane provides slip, enhances product wetness prior to dry-down and reduces tackiness.
Disiloxane also forms a film on skin, helping skin to trap moisture and properly hydrate.
CAS Number: 107-46-0
EC Number: 203-492-7
MDL Number: MFCD00008265
Molecular Weight: 78.23 g/mol
Molecular Formula: 2C6H18OSi2
SYNONYMS:
Disiloxane, Hexamethyldisiloxane, HMDS, Bis(trimethylsilyl) ether, Silane, 1,1,1,3,3,3-hexamethyldisiloxane, Dimethylsiloxane dimer, HMDO, Silicone fluid 0.65, Trimethylsilyl ether, Hexamethylsiloxane, 107-46-0, HexamethyldisiloxaneSPI-0.65, Disiloxane, silyloxysilane, 13597-73-4, Oxybis(silane), silylether, Disiloxan, bis-silyl ether, Bis silyl ether, mono-silyl ether, H3Si-O-SiH3, H3 Si O Si H3, CHEBI:48141, DTXSID70929193, Q2675470, Disiloxane, Disilyl ether, Disilyl oxide, Hexahydrodisiloxane, Perhydrodisiloxane, Silyl ether, Silyl oxide, belsil DM 0.65, hexamethyldisiloxane, silane, oxybis(trimethyl-, trimethyl(trimethylsilyloxy)silane, bis(trimethylsyl)oxide
Disiloxane is an active silicone polymer with a viscosity of 0.65 centistokes.
Disiloxane is a colorless liquid silicone polymer hexamethyldisiloxane.
Disiloxane is an excellent solvent for many oils, lubricants, and silicone polymers.
Disiloxane is a siloxane.
Disiloxane is a linear siloxane.
Disiloxane has the chemical formula Si2H6O.
Disiloxane is the simplest known siloxane with hydrogen only R groups.
The molecule of Disiloxane contains six equivalent Si−H bonds and two equivalent Si−O bonds.
Disiloxane exists as a colorless, pungent gas under standard conditions.
However, Disiloxane is generally safe for human use as evidence in its widespread use in cosmetics.
Disiloxane is also commonly known as disilyl ether, disilyl oxide, and perhydrodisiloxane
Disiloxane can be used as sealants for construction, paints, inks, and coatings, cosmetics, mechanical fluids, textile applications, and paper coatings.
Commercial use of disiloxane is common in cosmetics.
Disiloxane is commonly found in products such as sunscreen, moisturizer, hair spray, eye liner, body spray, nail polish, makeup remover, and conditioner.
The properties that disiloxane exhibits in these products include fast drying, oil reducing, moisturizing, skin conditioning, and defoaming agent (preventing formation of foam).
Disiloxane is a type of silicone compound that is primarily used in cosmetic formulations as a solvent, providing a lightweight and silky texture to products.
Disiloxane helps to improve the spreadability of creams, lotions, and serums, allowing for smooth and even application on the skin.
Due to its volatility, Disiloxane evaporates quickly upon application, leaving behind a soft and non-greasy feel.
Its properties make Disiloxane a popular choice in various skincare and haircare products.
In its raw form, Disiloxane appears as a clear and odorless liquid.
The chemical formula of Disiloxane is H6OSi2.
Disiloxane is a multi-functional synthetic skin care ingredient used in cosmetics as a texture enhancer and anti-foaming agent.
Falling under the siloxane umbrella, disiloxane is a type of silicone.
Its volatility and low viscosity let Disiloxane evaporate quickly, reducing dry-down time and leaving a smooth, weightless finish.
Disiloxane is a very thin and very volatile (evaporates from the skin rather than absorbs into it) silicone fluid that gives silky softness and great spreadability to the formulas.
USES and APPLICATIONS of DISILOXANE:
Intermediate in Silicon Chemistry: Disiloxane is used in the synthesis of silicone polymers and other organosilicon compounds.
Carrier and Diluent: Disiloxane acts as a carrier for active ingredients in cosmetics, pharmaceuticals, and industrial applications.
Defoaming Agent: Disiloxane is used to reduce or eliminate foam in various industrial processes.
Lubricant Additive: Disiloxane enhances the properties of lubricants and greases.
Coating and Surface Treatment: Disiloxane is used in hydrophobic coatings and surface treatments.
Cosmetic Uses: Disiloxane is used antifoaming agents, and skin conditioning
Disiloxane is used in applications requiring excellent cleaning ability from greases, oils, and other fluids.
Intermediate in Silicon Chemistry: Disiloxane is used in the synthesis of silicone polymers and other organosilicon compounds.
Carrier and Diluent: Disiloxane acts as a carrier for active ingredients in cosmetics, pharmaceuticals, and industrial applications.
Defoaming Agent: Disiloxane is used to reduce or eliminate foam in various industrial processes.
Lubricant Additive: Disiloxane enhances the properties of lubricants and greases.
Coating and Surface Treatment: Disiloxane is used in hydrophobic coatings and surface treatments.
When used in cosmetic formulas, Disiloxane provides slip, enhances product wetness prior to dry-down and reduces tackiness.
Disiloxane can also be used as a solvent to help deliver other ingredients to skin.
Disiloxane also forms a film on skin, helping skin to trap moisture and properly hydrate.
Usage levels and safety of Disiloxane as used in cosmetics haven’t been established; however, similar siloxane-type silicones are inert and not shown to pose a risk to skin.
Disiloxane is compatible with many ingredients used in cosmetics.
Disiloxane is recommended for use in creams, lotions, lipsticks, make-up products, shaving creams, deodorants.
Disiloxane is a linear siloxane, a volatile silicone, a product with a soft and fine texture, pronounced plasticizing properties, a foaming agent and a skin conditioner.
FUNCTIONS OF DISILOXANE IN COSMETIC PRODUCTS:
*ANTIFOAMING
Disiloxane suppresses foaming during the manufacture or the application of cosmetic products
*SKIN CONDITIONING
Disiloxane maintains the skin in good condition
DISILOXANE AT A GLANCE:
*Part of the siloxane group of silicones
*Imparts slip and anti-foaming properties into formulas
*Rapidly evaporates, reducing dry-down time
*Helps skin trap moisture to improve hydration
PROPERTIES AND BENEFITS OF DISILOXANE:
*Volatility:
Useful in quick-drying and low-residue applications.
*Thermal Stability:
Withstands high temperatures without significant degradation.
*Hydrophobicity:
Imparts water-repelling properties to surfaces and formulations.
*Non-Toxic:
Considered safe for use in cosmetics and personal care products.
*Compatibility:
Easily blends with a wide range of organic and silicone-based materials.
WHAT IS DISILOXANE USED FOR?
Disiloxane finds multiple uses in the realm of cosmetics, with distinct benefits for the skin, hair, and overall product formulation.
*Skin care:
Disiloxane is often employed as a solvent and carrier for active ingredients.
Disiloxane's lightweight texture allows for easy application, helping serums, creams, and lotions spread smoothly across the skin.
Disiloxane's rapid evaporation rate ensures quick absorption, leaving the skin feeling soft and non-greasy.
Additionally, Disiloxane's presence can contribute to the formulation's overall stability and longevity
*Hair care:
Disiloxane enhances the spreadability of hair products such as leave-in conditioners, hair serums, and styling products, allowing for even distribution.
The lightweight nature of disiloxane helps reduce product build-up and heaviness, resulting in hair that feels weightless, silky, and manageable
*Cosmetic products:
Disiloxane aids in dissolving and dispersing pigments, oils, and other components, ensuring a homogeneous and well-blended product.
Disiloxane's quick evaporation rate also assists in achieving desirable product textures, such as lightweight foundations or primers, without leaving a heavy residue on the skin
ORIGIN OF DISILOXANE:
Disiloxane is typically synthesized through the hydrolysis and condensation reactions of organosilicon compounds.
Disiloxane involves combining silane precursors, such as alkylchlorosilanes or alkyltrichlorosilanes, with water or alcohol.
This process results in the formation of disiloxane molecules, which can then be purified and used in cosmetic formulations.
WHAT DOES DISILOXANE DO IN A FORMULATION?
*Solvent
SAFETY PROFILE OF DISILOXANE:
Disiloxane is generally considered safe for use in cosmetics, as it has been assessed by regulatory authorities and deemed suitable for formulation.
However, like any cosmetic ingredient, individual sensitivities may vary.
It is advisable to perform a patch test before using products containing disiloxane, especially if you have known sensitivities or allergies.
Additionally, Disiloxane is a non-comedogenic and vegan-friendly ingredient.
ALTERNATIVES OF DISILOXANE:
*DIMETHICONE,
*CAPRYLIC CAPRIC TRIGLYCERIDE,
*ISODODECANE
FUNCTIONS OF DISILOXANE:
*Cleansing agent
*Antifoaming
*Skin conditioning
STRUCTURE OF DISILOXANE:
Disiloxane has a simple structure that consists of a siloxane bond (Si−O−Si) and hydrogen R groups.
The structure of disiloxane has been studied by a variety of spectroscopic methods such as electron diffraction, X-ray crystallography, dipole moment, and nuclear magnetic resonance spectroscopy.
Due to their unusual nature, the Si−O−Si bond angles are commonly studied.
These bonds typically exhibit angles that are larger than average, around 130 to 160 degrees, and larger bond lengths are not uncommon.
For example, in the solid state at a temperature of 108 K, disiloxane itself has an Si−O−Si bond angle of 142°.
In contrast, the C−O−C bond angle in the carbon analogue of disiloxane, dimethyl ether, is 111°.
The unusual bond angle in disiloxane has been attributed primarily to negative hyperconjugation between oxygen p orbitals and silicon–carbon σ* antibonding orbitals, p(O) → σ*(Si
