Is Cyclotetrasiloxane a silicone?
Recently many ingredients have been restricted in cosmetic products, among others: Cyclopentasiloxane (D5) and Cyclotetrasiloxane (D4). Both of them are silicones, and they are used to protect the skin and to retain moisture.
What is another name for octamethylcyclotetrasiloxane?
Octamethylcyclotetrasiloxane
| PubChem CID | 11169 |
|---|---|
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C8H24O4Si4 |
| Synonyms | OCTAMETHYLCYCLOTETRASILOXANE 556-67-2 Cyclotetrasiloxane, octamethyl- 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Oktamethylcyklotetrasiloxan More… |
What is octamethylcyclotetrasiloxane used for?
Octamethylcyclotetrasiloxane (D4; CAS No. 556-67-2) is used as a monomer in the manufacture of polymeric materials, which are widely used in various industrial and/or medical applications, such as breast implants.
What is D4 D5 D6?
D4, D5 and D6 contain 4, 5 and 6 repeating units respectively. They are three main cyclosiloxanes in commercial production and several decades of research has proven that they are safe for human health and the environment.
Is Cyclotetrasiloxane safe for skin?
Second, the US Cosmetic Ingredient Review Expert Panel (CIR) considers cyclopentasiloxane safe in the present practices of use and concentration. This assessment also embraces cyclomethicone, cyclotetrasiloxane (D4), cyclohexasiloxane (D6), and cycloheptasiloxane (D7).
Is Cyclotetrasiloxane good for skin?
Cyclotetrasiloxane is a type of silicone that is most often utilized for contributing emollience to a formula and delivering a skin-softening effect.
Is octamethylcyclotetrasiloxane volatile?
Octamethylcyclotetrasiloxane (D4) is a volatile cyclic siloxane used primarily as a monomer or intermediate in the production of some silicon-based polymers widely used in industrial and consumer applications and may be present as a residual impurity in a variety of consumer products.
Is octamethylcyclotetrasiloxane soluble?
Octamethylcyclotetrasiloxane, also called D4, is an organosilicon compound with the formula [(CH3)2SiO]4. It is a colorless viscous liquid….Octamethylcyclotetrasiloxane.
| Names | |
|---|---|
| Solubility in water | 56.2±2.5 ppb (23 °C) |
| log P | 6.98±0.13 |
| Vapor pressure | 124.5±6.2 Pa (25 °C) |
| Hazards |
What is D4 and D5 silicone?
D4 and D5 are cyclosiloxanes mainly used as monomers for silicone polymer production. They also have a direct use in personal care products. D4 has been identified as a persistent, bioaccumulative and toxic (PBT) and very persistent very bioaccumulative (vPvB) substance. D5 has been identified as a vPvB substance.
Is Cyclotetrasiloxane safe for hair?
Is Cyclotetrasiloxane D4 Safe? Like so many of the chemicals in personal care products, this one has been generally considered safe—particularly in rinse-off products like conditioners.
Is Cyclotetrasiloxane water soluble?
The second category is partially water soluble which includes Amodimethicone, Behenoxy dimethicone, Cyclohexasiloxane, Cyclomethicone, Cyclotetrasiloxane, Stearoxy dimethicone.
What does Cyclotetrasiloxane do to your hair?
The cyclosiloxanes commonly known as cyclotetrasiloxane (D4) and cyclopentasiloxane (D5) are used for their anti-static, emollient, humectant, solvent, viscosity-controlling and hair conditioning properties in cosmetic products.