1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropylether
2,2,3,3-Tetrafluoro-1-(1,1,2,2-tetrafluoroethoxy)propane
CAS: 16627-68-2
Molecular Formula: C5H4F8O
1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropylether - Names and Identifiers
1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropylether - Physico-chemical Properties
| Molecular Formula | C5H4F8O |
| Molar Mass | 232.07 |
| Density | 1.533 |
| Boling Point | 92 °C |
| Flash Point | 27.5 °C |
| Appearance | clear liquid |
| Specific Gravity | 1.533 |
| Color | Colorless to Almost colorless |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.29 |
1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropylether - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 3271 |
| HS Code | 29091990 |
| Hazard Class | IRRITANT |
| Packing Group | II |
1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropylether - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | 1,1,2, 2-tetrafluoroethyl-2, 2,3, 3-tetrafluoropropyl ether (HFE-458) is a hydrofluoroether. Hydrofluoroethers are a new alternative to chlorofluorocarbons (CFCs), with Zero ODP, low GWP and short atmospheric residence time, and are considered to be one of the ideal alternatives to CFCs. |
| preparation | a 10L autoclave was evacuated, replaced with monomer once, and evacuated to-0.1MPa, then 2kg of tetrafluoropropanol was added, 4kg of sodium tetrafluoropropanol solution (the mass fraction of sodium tetrafluoropropanol is 25%), then add the monomer to 0.4MPa, stir and raise the temperature to about 85 ℃, start adding the monomer to the storage tank pressure of 0.75MPa, at the same time, the temperature of the kettle was controlled at about 85 °c. When the pressure in the kettle drops to 0.5MPa, the monomer is added again to the tank pressure for 2 hours, then the monomer is continuously added, and the reaction is continued for 5 hours, cooling, discharging and weighing, A total of 3.75 of monomer was added. The discharged material is added to the rectification kettle for rectification, and the material with the top temperature of 93~94 ° C is 1,1,2, 2-tetrafluoroethyl-2, 2,3, the purity of the product was 98.5% and the yield of the product was 80.5%. |
Last Update：2024-04-09 21:11:58
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