N-Methyl-2-pyrrolidone with Solvent and extractant CAS 872-50-4
 
| N-Methyl-2-pyrrolidone Basic information | |
| Product Name: | N-Methyl-2-pyrrolidone | 
| CAS: | 872-50-4 | 
| MF: | C5H9NO | 
| MW: | 99.13 | 
| EINECS: | 212-828-1 | 
| Mol File: | 872-50-4.mol | 
| N-Methyl-2-pyrrolidone Chemical Properties | |
| Melting point | -24 °C (lit.) | 
| Boiling point | 202 °C (lit.) 81-82 °C/10 mmHg (lit.) | 
| density | 1.028 g/mL at 25 °C (lit.) | 
| vapor density | 3.4 (vs air) | 
| vapor pressure | 0.29 mm Hg ( 20 °C) | 
| refractive index | n20/D 1.479 | 
| Fp | 187 °F | 
| storage temp. | Store at +5°C to +30°C. | 
| solubility | ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v) | 
| form | Liquid | 
| pka | -0.41±0.20(Predicted) | 
| color | ≤20(APHA) | 
| Odor | Slight amine odor | 
| PH | 8.5-10.0 (100g/l, H2O, 20ºC) | 
| PH Range | 7.7 - 8.0 | 
| explosive limit | 1.3-9.5%(V) | 
| Water Solubility | >=10 g/100 mL at 20 ºC | 
| λmax | 283nm(MeOH)(lit.) | 
| Sensitive | Hygroscopic | 
| Merck | 146,117 | 
| BRN | 106420 | 
| Appearance Active content | % | Light  transparent liquid 98 min | Light transparent liquid 99 | |
| PH(1% water solution) | 6.0 - 8.0 | 7.16 | ||
| Amine salt | % | 2.0 max | 1.24 | |
 
 
 
