Tetramethylcyclotetrasiloxane
2,4,6,8-tetramethylcyclotetrasiloxane
CAS: 2370-88-9
Molecular Formula: C4H16O4Si4
Tetramethylcyclotetrasiloxane - Names and Identifiers
| Name | 2,4,6,8-tetramethylcyclotetrasiloxane |
| Synonyms | Tetramethylcyclotetrasiloxane 2,4,6,8-tetramethylcyclotetrasiloxane 1,3,5,7-Tetramethylcyclotetrasiloxane Cyclotetrasiloxane, 2,4,6,8-tetramethyl- 2,4,6,8-Tetramethylcyclotetrasiloxane(HD4) 2,4,6,8-tetramethylcyclotetrasiloxane,mixtureofisomers 2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane 2,4,6,8-tetramethyl-1,3,5,7,2λ3,4λ3,6λ3,8λ3-tetraoxatetrasilocane 2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane-2,4,6,8-tetrayl |
| CAS | 2370-88-9 |
| EINECS | 219-137-4 |
| InChI | InChI=1/C4H12O4Si4/c1-9-5-10(2)7-12(4)8-11(3)6-9/h1-4H3 |
| InChIKey | BQYPERTZJDZBIR-UHFFFAOYSA-N |
Tetramethylcyclotetrasiloxane - Physico-chemical Properties
| Molecular Formula | C4H16O4Si4 |
| Molar Mass | 240.51 |
| Density | 0.986g/mLat 25°C(lit.) |
| Melting Point | −69°C(lit.) |
| Boling Point | 134°C(lit.) |
| Flash Point | 76°F |
| Water Solubility | Miscible with most organic solvents. Immiscible with water. |
| Vapor Presure | 0.05-479Pa at 20℃ |
| Appearance | Colorless or light yellow transparent liquid |
| Specific Gravity | 0.991 |
| Color | Colorless to Almost colorless |
| BRN | 1787074 |
| Storage Condition | 2-8°C |
| Sensitive | 3: reacts with aqueous base |
| Refractive Index | n20/D 1.387(lit.) |
| MDL | MFCD00039567 |
Tetramethylcyclotetrasiloxane - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R36 - Irritating to the eyes |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29319090 |
| Hazard Class | 3 |
| Packing Group | III |
Tetramethylcyclotetrasiloxane - Reference Information
| LogP | -2.4-5.54 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | 1,3,5,7-tetramethylcyclotetrasiloxane is a silicone reagent, mainly used in laboratory research and development process and chemical production process. |
| Use | Hydrosilylation reaction. |
Last Update：2024-04-09 15:16:49
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