Tetrafluorophenolminwhitewaxysolid
2,3,5,6-Tetrafluorophenol
CAS: 769-39-1
Molecular Formula: C6H2F4O
Tetrafluorophenolminwhitewaxysolid - Names and Identifiers
| Name | 2,3,5,6-Tetrafluorophenol |
| Synonyms | 2,3,5,6-Tetrafluorop 2,3,5,6-Tetrafluorophenol 4-Hydroxy-1H-perfluorobenzene 2,3,5,6-Tetrafluorophenol,tech. 2,3,5,6-tetrafluoroethane phenol Tetrafluorophenolminwhitewaxysolid Tfp-OH (Tetramethylfluoroformamidiniun hexafluorophosphate) |
| CAS | 769-39-1 |
| EINECS | 212-209-6 |
| InChI | InChI=1/C6H2F4O/c7-2-1-3(8)5(10)6(11)4(2)9/h1,11H |
Tetrafluorophenolminwhitewaxysolid - Physico-chemical Properties
| Molecular Formula | C6H2F4O |
| Molar Mass | 166.07 |
| Density | 1.4445 (estimate) |
| Melting Point | 37-39 °C (lit.) |
| Boling Point | 140 °C (lit.) |
| Flash Point | 175°F |
| Water Solubility | Partly miscible with water. |
| Vapor Presure | 4.97mmHg at 25°C |
| Appearance | Crystalline Low Melting Solid |
| Color | White |
| BRN | 1911548 |
| pKa | 5.46±0.20(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Stability | Stable. Incompatible with acid chlorides, acid anhydrides, oxidizing agents. |
| Refractive Index | 1.449 |
Tetrafluorophenolminwhitewaxysolid - 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 | UN3261 |
| WGK Germany | 3 |
| HS Code | 29081990 |
| Hazard Note | Irritant |
| Hazard Class | 8 |
| Packing Group | III |
Tetrafluorophenolminwhitewaxysolid - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| Application | 2,3,5, 6-tetrafluorophenol is an important organic glycol, A wide use of organic raw materials, in the organic synthesis industry, is the basis of raw materials; But also can be used for the production of lubricants, plasticizers; Can also be used in the synthesis of pharmaceuticals and organic intermediates and so on; can also be used for liquid crystal materials, degradable functional polymer materials; Spices, lubricants, inks, coatings, cosmetics, plasticizers and various additives, such as the production. |
| synthesis method | A 1L glass kettle was charged with 404G of DMF and 202.3g of sodium acetate. The temperature was controlled at 50-55C and 106.0G of pentafluorobenzoic acid was added. The reaction was heated to reflux for 6 hours. The content of the raw material in the reaction solution was lower than 1.0% by HPLC, and decreased to below 80C, and 350.0G of 30% concentrated hydrochloric acid was added to the kettle to adjust the pH to less than 1. The reaction was then heated to reflux for 5 hours. After completion of reflux, water vapor distillation was performed to separate the lower organic matter. The organic substance in the lower layer was subjected to distillation to obtain 74.0G of 2,3,5, 6-tetrafluorophenol, which turned into white crystals after cooling, the yield was 89%, and the HPLC purity was 99.9%. synthetic scheme of fig.2, 3,5, 6-tetrafluorophenol |
| storage | 2,3,5, 6-tetrafluorophenol must be sealed and protected from light and air. At the same time must be stored in a cool, ventilated warehouse, away from fire and heat sources and strong alkaline reagent. The temperature of the warehouse should not be too high, generally not more than 26. 2,3,5,6-tetrafluorophenol should be stored separately from the oxidant, etc., not mixed storage, should not be stored in large quantities or for a long time. |
Last Update：2024-04-09 15:16:52
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