| 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Chemical Properties |
| Melting point | −69 °C(lit.) |
| Boiling point | 134 °C(lit.) |
| density | 0.986 g/mL at 25 °C(lit.) |
| vapor pressure | 0.05-479Pa at 20℃ |
| refractive index | n20/D 1.387(lit.) |
| Fp | 76 °F |
| storage temp. | 2-8°C |
| form | liquid |
| Specific Gravity | 0.991 |
| color | Colorless to Almost colorless |
| Water Solubility | Miscible with most organic solvents. Immiscible with water. |
| Hydrolytic Sensitivity | 3: reacts with aqueous base |
| Sensitive | Moisture Sensitive |
| BRN | 1787074 |
| InChIKey | BQYPERTZJDZBIR-UHFFFAOYSA-N |
| LogP | -2.4-5.54 at 25℃ |
| CAS DataBase Reference | 2370-88-9(CAS DataBase Reference) |
| EPA Substance Registry System | Cyclotetrasiloxane, 2,4,6,8-tetramethyl- (2370-88-9) |
2,4,6,8-Tetramethylcyclotetrasiloxane can occur addition reaction with unsaturated alkenes, so it’s utilized widely to synthesize variety functional reactive silicone fluids which is used to form silicone block copolymer, or used as crosslinker of vinyl addition silicone rubber. Tetramethyl-cyclotetrasiloxane is a good impregnant of photoelectric material. It is used to manufacture of modified siloxane with defined hydrogen content and chain quantity. It is also used in production of silicone polymers and acts as a precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics and semiconductors.
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