N-Methylpyrrolidone
Solvent Properties

CAS 872-50-4


Physical Properties  
Molecular weight 99.13
Boiling point 202C
Vapor pressure 0.33 Torr at 25C
Freezing point -24.4C
Refractive index 1.4700 at 20C
Density 1.0304 g/mL (8.598 lb/gal) at 20C
  1.0259 g/mL (8.560 lb/gal) at 25C
Dielectric constant 32.2 at 25C
Dipole moment 4.09 D at 30C
Solvent group 3
Polarity index (P') 6.7
Viscosity 1.67 cP at 25C
Solubility in water Miscible in all proportions
   
Regulatory and Safety Data  
DOT Hazard Class Not Regulated
   
Storage Store in a cool, dry area away from direct sunlight.
   
EPA applicable waste code(s) Not listed. Dispose of material in an environmentally acceptable manner.
Flash point 204F (96C) by closed cup
Lower explosive limit Not Listed (NFPA)*
Upper explosive limit Not Listed (NFPA)*
Time Weighted Average Not Listed