Product Description
Decamethylcyclopentasiloxane (cyclopentasiloxane) is a colorless, odorless, and volatile cyclic siloxane liquid. Known for its safety and environmental friendliness, it is widely utilized in personal care and beauty products, including deodorants, antiperspirants, cosmetics, shampoos, and body lotions. It also demonstrates excellent compatibility with alcohol and a wide range of cosmetic solvents.
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) |
Safety Information
| 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
Extensively used in cosmetic and personal care formulations, it offers excellent compatibility with most alcohols and various cosmetic solvents.
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