Products Description of Decamethylcyclopentasiloxane CAS#541-02-6
Decamethylcyclopentasiloxane—or cyclopentasiloxane for short—is a colorless, odorless, volatile liquid from the siloxane family. It's considered safe and eco-friendly, and it's widely used in personal care and beauty products like deodorants, antiperspirants, cosmetics, shampoos, and body lotions, among others.
It also mixes very well with alcohol and most other cosmetic solvents, which makes it a handy, versatile ingredient for health and beauty formulations.
Decamethylcyclopentasiloxane Chemical Properties
| Melting point | -44°C |
| Boiling point | 90 °C/10 mmHg (lit.) |
| density | 0.958 g/mL at 25 °C (lit.) |
| vapor pressure | 33.2Pa at 25℃ |
| refractive index | n20/D 1.396(lit.) |
| Fp | 162 °F |
| storage temp. | 2-8°C |
| solubility | <0.0001g/l (calculated) |
| form | Liquid |
| color | Colorless |
| Specific Gravity | 0.959 |
| explosive limit | 0.52-7%(V) |
| Water Solubility | Immiscible with water. |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| Merck | 142848 |
| BRN | 1800166 |
| Dielectric constant | 2.5（20℃） |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | XMSXQFUHVRWGNA-UHFFFAOYSA-N |
| LogP | 8.07 at 24.6℃ |
| CAS DataBase Reference | 541-02-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Decamethylcyclopentasiloxane(541-02-6) |
| EPA Substance Registry System | Decamethylcyclopentasiloxane (541-02-6) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-53 |
| Safety Statements | 23-24/25-36-26 |
| RIDADR | NA 1993 / PGIII |
| WGK Germany | 2 |
| RTECS | GY5945200 |
| TSCA | Yes |
| HS Code | 29310095 |
| Hazardous Substances Data | 541-02-6(Hazardous Substances Data) |
| Toxicity | LD50 oral in rat: > 24134mg/kg |
Product Application of Decamethylcyclopentasiloxane CAS#541-02-6
Decamethylcyclopentasiloxane is a common ingredient in cosmetics and personal care products. It mixes well with most alcohols and other cosmetic solvents, so it works in many different formulations and beauty care applications.
