N,N-Diethylacrylamide (stabilized with MEHQ)
N,N-Diethylacrylamide
CAS: 2675-94-7
Molecular Formula: C7H13NO
N,N-Diethylacrylamide (stabilized with MEHQ) - Names and Identifiers
N,N-Diethylacrylamide (stabilized with MEHQ) - Physico-chemical Properties
| Molecular Formula | C7H13NO |
| Molar Mass | 127.18 |
| Density | 0.924 at 25 °C |
| Melting Point | 93℃/19mm |
| Boling Point | 93-95°C 10mm |
| Flash Point | 88℃ |
| Water Solubility | Soluble in water |
| Vapor Presure | 0.2-47.329Pa at 11.67-34.92℃ |
| Appearance | Liquid |
| Color | Colorless to Light yellow |
| pKa | -0.77±0.70(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4676 (589.3 nm 20℃ |
| MDL | MFCD00078408 |
N,N-Diethylacrylamide (stabilized with MEHQ) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. R51 - Toxic to aquatic organisms R36 - Irritating to the eyes R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 1993 / PGIII |
| WGK Germany | 3 |
| RTECS | AS3471000 |
| HS Code | 29241990 |
N,N-Diethylacrylamide (stabilized with MEHQ) - Reference Information
| LogP | 0.61-0.84 at 23-30℃ and pH7.17-7.28 |
| surface tension | 66-67.6mN/m at 1g/L and 20-20.05 ℃ |
| production method | 46.8kg of diethylamine, 600kg of dichloromethane and 160kg(24%) of sodium hydroxide solution are added to a reaction kettle equipped with a circulating cooling system, the temperature is reduced to 5 ℃, then 60kg of mixed solution of acryloyl chloride and dichloromethane are slowly added (the temperature during the addition process is not more than 15 ℃). after the acryloyl chloride is added, react at 15 ℃ for 0.5-1h. After the reaction is completed, the reactants are left standing to separate out the organic phase, washed several times with distilled water and 5% NaCl solution respectively, dried with anhydrous sodium sulfate, and distilled out dichloromethane to obtain orange-red viscous liquid-crude product. The obtained crude product is subjected to vacuum distillation, and the fraction under the condition of (135-140 ℃)/(1.5kPa) is collected to obtain the product of polymerization grade, which is a colorless transparent viscous liquid with 85.2% yield (calculated as acryloyl chloride). |
Last Update：2024-04-09 20:48:19
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