Octamethylcyclotetrasiloxane: Difference between revisions

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'''Octamethylcyclotetrasiloxane''' (often abbreviated as '''OMCTS''' or '''D4''') is a type of [[siloxane]], a class of [[chemical compound]]s containing [[silicon]], [[oxygen]], and [[carbon]]. It is a colorless, odorless liquid used in a variety of applications, including [[cosmetics]], [[pharmaceuticals]], and [[industrial lubricants]].
{{Chembox
| Name = Octamethylcyclotetrasiloxane
| ImageFile = Octamethylcyclotetrasiloxane.png
| ImageSize = 200px
| IUPACName = Octamethylcyclotetrasiloxane
| OtherNames = D4
| Section1 = {{Chembox Identifiers
  | CASNo = 556-67-2
  | PubChem = 10907
  | ChemSpiderID = 10442
  | UNII = 0THT5PCI0R
  | ChEMBL = 156451
  | SMILES = C[Si](C)(C1)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
  | InChI = 1S/C8H24O4Si4/c1-13(2)9-15(5,6)11-16(7,8)12-14(3,4)10-15/h1-8H3
  | InChIKey = CYHXKYAYJVTOHU-UHFFFAOYSA-N
}}
| Section2 = {{Chembox Properties
  | C = 8
  | H = 24
  | O = 4
  | Si = 4
  | Appearance = Colorless liquid
  | Density = 0.956 g/cm³
  | MeltingPt = -68 °C
  | BoilingPt = 175 °C
  | Solubility = Insoluble in water
}}
}}


== Structure and Properties ==
'''Octamethylcyclotetrasiloxane''' (D4) is a [[siloxane]] compound with the chemical formula (CH₃)₈Si₄O₄. It is a colorless, odorless liquid that is used in a variety of industrial and consumer applications.
Octamethylcyclotetrasiloxane is a cyclic compound, meaning its molecules form a closed loop. It consists of four [[silicon]] atoms and four [[oxygen]] atoms arranged in a ring, with two [[methyl group]]s attached to each silicon atom. This structure gives it unique properties, such as low [[viscosity]], high [[thermal stability]], and the ability to form a [[water repellent]] layer on surfaces.
 
[[File:Octamethylcyclotetrasiloxane.png|thumb|right|200px|Structure of Octamethylcyclotetrasiloxane]]


== Uses ==
== Uses ==
Due to its unique properties, octamethylcyclotetrasiloxane is used in a wide range of applications. In the [[cosmetics industry]], it is used as an ingredient in products such as [[deodorants]], [[shampoos]], and [[skin care]] products. In the [[pharmaceutical industry]], it is used as a carrier in [[transdermal drug delivery]] systems. In the [[industrial sector]], it is used as a lubricant and as a component in [[silicone rubber]] and [[silicone resin]].
Octamethylcyclotetrasiloxane is primarily used as an intermediate in the production of [[silicone]] polymers. It is also used in the formulation of [[personal care products]], such as [[shampoos]], [[conditioners]], and [[skin care]] products, due to its ability to impart a smooth feel and enhance the spreadability of the product.


== Safety and Environmental Impact ==
== Safety and Environmental Concerns ==
Octamethylcyclotetrasiloxane is generally considered safe for use in cosmetics and pharmaceuticals. However, some studies have suggested that it may have potential [[endocrine disrupting]] effects. It is also persistent in the environment and has been detected in air, water, and soil samples. Therefore, its use and disposal are subject to regulations in many countries.
There are concerns about the environmental impact of octamethylcyclotetrasiloxane, as it is persistent in the environment and can bioaccumulate in aquatic organisms. Studies have been conducted to assess its potential effects on human health and the environment. Regulatory agencies have evaluated its safety and have set guidelines for its use in consumer products.


== See Also ==
== See Also ==
* [[Siloxane]]
* [[Siloxane]]
* [[Silicone]]
* [[Silicone]]
* [[Endocrine disruptor]]
* [[Personal care products]]


== References ==
== References ==
<references />
* [https://pubchem.ncbi.nlm.nih.gov/compound/Octamethylcyclotetrasiloxane PubChem - Octamethylcyclotetrasiloxane]
* [https://www.chemspider.com/Chemical-Structure.10442.html ChemSpider - Octamethylcyclotetrasiloxane]


{{Siloxanes}}
{{Chemical compounds}}
[[Category:Siloxanes]]
[[Category:Organosilicon compounds]]
[[Category:Chemical compounds]]
[[Category:Chemical compounds]]
[[Category:Silicon compounds]]
[[Category:Cosmetic chemicals]]
[[Category:Pharmaceutical ingredients]]
[[Category:Industrial chemicals]]
{{Chem-stub}}
{{medicine-stub}}

Latest revision as of 20:46, 30 December 2024

Chemical Compound
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CAS Number
PubChem CID
ChemSpider ID
UNII
ChEBI
ChEMBL
Properties
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Octamethylcyclotetrasiloxane (D4) is a siloxane compound with the chemical formula (CH₃)₈Si₄O₄. It is a colorless, odorless liquid that is used in a variety of industrial and consumer applications.

Uses[edit]

Octamethylcyclotetrasiloxane is primarily used as an intermediate in the production of silicone polymers. It is also used in the formulation of personal care products, such as shampoos, conditioners, and skin care products, due to its ability to impart a smooth feel and enhance the spreadability of the product.

Safety and Environmental Concerns[edit]

There are concerns about the environmental impact of octamethylcyclotetrasiloxane, as it is persistent in the environment and can bioaccumulate in aquatic organisms. Studies have been conducted to assess its potential effects on human health and the environment. Regulatory agencies have evaluated its safety and have set guidelines for its use in consumer products.

See Also[edit]

References[edit]

Template:Siloxanes



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