2343-89-7
Methyl 2-Fluoroacrylate
CAS: 2343-89-7
Molecular Formula: C4H5FO2
2343-89-7 - Names and Identifiers
2343-89-7 - Physico-chemical Properties
| Molecular Formula | C4H5FO2 |
| Molar Mass | 104.08 |
| Density | 1,114 g/cm3 |
| Boling Point | 41°C |
| Flash Point | 1.1°C |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 70.6hPa at 25℃ |
| Appearance | Liquid |
| Color | Colorless to Almost colorless |
| Storage Condition | 2-8°C |
| Refractive Index | 1.39 |
2343-89-7 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
| 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. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | 1993 |
| HS Code | 29161290 |
| Hazard Note | Irritant |
| Hazard Class | 3 |
| Packing Group | Ⅱ |
2343-89-7 - Reference Information
| LogP | 0.931 at 25℃ and pH6.3 |
| surface tension | 71.5mN/m at 1g/L and 20.4 ℃ |
| introduction | the performance of fluorine-containing polymer optical fiber materials depends to a large extent on the structure of the monomer, and the production cost of perfluoroacrylate monomers is too high. And it is very difficult to polymerize, and the commercial value is mainly perfluorinated polymers on the 2-position fluoro and ester groups of acrylic acid. Therefore, methyl 2-fluoroacrylate is the key monomer for the production of fluorine-containing polymer optical fiber materials, and 2-fluoropropionate is the key intermediate for the synthesis of methyl 2-fluoroacrylate. |
| uses | 2-methyl fluoroacrylate has important uses in the medicine and material industry. it is a useful synthetic intermediate for medicine, coatings, semiconductor photoresist materials, etc. the amount of industrial production is increasing year by year. |
| preparation | as shown in the figure, 200.1g (1 mol, theoretical yield) of the concentrated dry product of the previous reaction, 300 ml of n-pentane, 31.5g (1.05 mol) of paraformaldehyde and 1.0g (0.5% of the mass of Claisen sodium salt) were added to a 1000 ml three-mouth bottle, and the reaction was stopped after 10 h of the reaction at 25~30 ℃. Add 300 ml of water to the reaction solution to destroy it, stir for 0.5 h, separate the solution, wash the organic phase to neutral, distill the n-pentane under normal pressure (30-36 ℃), and then distill under reduced pressure (30-40 ℃,P =-O.6MPa ~-O.7MPa) to obtain 47.5g of colorless liquid 2-methyl fluoroacrylate with a yield of 42.4% ( GC main content = 97.5577%). |
Last Update：2024-04-09 21:01:54
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