N-methyl pyrrolidone
- CAS NO. : 872-50-4
- CAT NO. : FO-OOC-2504
Physical State: Liquid
Color/Appearance: Colorless, ≤20 APHA
Melting Point: −24 °C
Boiling Point: 202 °C (lit.) / 81–82 °C at 10 mmHg (lit.)
Density: 1.028 g/mL at 25 °C
Refractive Index: 1.479
Vapor Density: 3.4 (vs air)
Vapor Pressure: 0.29 mmHg at 20 °C
Flash Point: 187 °F
Solubility: Miscible with ethanol (0.1 mL/mL, 10%, v/v), transparent
Storage Conditions: Store at +5 °C to +30 °C
Acidity (pKa): −0.41 ± 0.20 (Predicted)
PH: 8.5–10.0 (100 g/L, H₂O, 20 °C)
Odor: Slight amine-like
Molecular Formula: C₅H₉NO
Molecular Weight: 99.13 g/mol
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