N-Methylpyrrolidone Solvent Properties | Specification | Applications | Uses

CAS 872-50-4

Physical Properties
Molecular weight	99.13
Boiling point	202°C
Vapor pressure	0.33 Torr at 25°C
Freezing point	-24.4°C
Refractive index	1.4700 at 20°C
Density	1.0304 g/mL (8.598 lb/gal) at 20°C
	1.0259 g/mL (8.560 lb/gal) at 25°C
Dielectric constant	32.2 at 25°C
Dipole moment	4.09 D at 30°C
Solvent group	3
Polarity index (P’)	6.7
Viscosity	1.67 cP at 25°C
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	204°F (96°C) by closed cup
Lower explosive limit	Not Listed (NFPA)*
Upper explosive limit	Not Listed (NFPA)*
Time Weighted Average	Not Listed