Decamethylcyclopentasiloxane CAS#541-02-6
Colorless and Odorless – Provides a clean, non-intrusive sensory profile for formulations.
Volatile and Lightweight – Evaporates quickly, leaving a smooth, non-greasy feel.
Safe and Eco-Friendly – Suitable for widespread use in personal care products.
Excellent Solvent Compatibility – Mixes well with alcohol and most cosmetic solvents.
Products Description of Decamethylcyclopentasiloxane CAS#541-02-6
Decamethylcyclopentasiloxane, also known as cyclopentasiloxane, is a colorless, odorless, and volatile cyclic siloxane liquid. It is considered safe and environmentally friendly, and is widely applied in health and beauty products such as deodorants, antiperspirants, cosmetics, shampoos, and body lotions. It also shows good compatibility with alcohol and most other cosmetic solvents.
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 | 142,848 |
| 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 of Decamethylcyclopentasiloxane CAS#541-02-6
It is extensively used in cosmetics and personal care products and is compatible with most alcohols as well as other cosmetic solvents.
