Description
Octamethylcyclotetrasiloxane Chemical Properties
| Melting point | 17-18 °C (lit.) |
| Boiling point | 175-176 °C (lit.) |
| density | 0.956 g/mL at 25 °C (lit.) |
| vapor density | 1 (vs air) |
| vapor pressure | 1.32hPa at 25℃ |
| refractive index | n20/D 1.396(lit.) |
| Fp | 140 °F |
| storage temp. | Store below +30°C. |
| solubility | <0.001g/l Hydrolysis |
| form | liquid |
| color | colorless |
| Specific Gravity | 0.956 |
| explosive limit | 0.4-11.7%(V) |
| Water Solubility | INSOLUBLE |
| Sensitive | Moisture Sensitive |
| Merck | 14,6747 |
| BRN | 1787074 |
| Dielectric constant | 2.4（20℃） |
| InChIKey | HMMGMWAXVFQUOA-UHFFFAOYSA-N |
| LogP | 6.98 at 21.7℃ |
| CAS DataBase Reference | 556-67-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Cyclotetrasiloxane, octamethyl-(556-67-2) |
| EPA Substance Registry System | Octamethylcyclotetrasiloxane (556-67-2) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 53-62-10 |
| Safety Statements | 36/37-46-51-61 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 1 |
| RTECS | GZ4397000 |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29319090 |
| Hazardous Substances Data | 556-67-2(Hazardous Substances Data) |
| Toxicity | LD50 oral in rat: 1540mg/kg |
Reviews
There are no reviews yet.