N-methyl-2-pyrrolidone
1-Methyl-2-pyrrolidone; NMP ;N-methyl pyrrolidone

Product Code.
01742
Grade
Purity
99%
CAS No.
872-50-4
Molecular Formula
C5H9NO
Molecular Weight
99.13
H.S.Code
2933.79000
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Liquid
Colour
Colorless to pale yellow
Odour
Slight amine odor
pH value
7.7 - 8.0
Melting point/ Freezing point [°C]
-24 °C
Flash point [°C]
91 °C
Boiling point [°C]
202 °C
Vapour pressure [20°C]
0.39 - 0.43 hPa at 20 °C
Vapour density
3.42
Density [g/cm3]
1.028
Solubility in water [% weight]
Miscible with water
Partition coefficient Log Pow octanol / water at 20°C
-0.46
Explosion limits - upper [%]
9.50%
Explosion limits -lower [%]
1.30%

Packaging

Specification

Appearance
Almost colourless to pale yellow colored liquid
Assay
Min 99%
Water (H2O)
Max 0.05%
Specific gravirty
1.031 - 1.033
Refractive index (20°C; 589 nm)
Approx 1.470
Boiling range (at 760 mm Hg)
202 - 203 deg C
Boiling range (at 10 mm Hg)
78 - 79 deg C

Safety Information and Hazard Symbols

Symbol: GHS07, GHS08
Signal Word: Danger
Hazardous Statement: H315-H319-H335-H360D
Precaution Statement: P201-P261-P305 + P351 + P338-P308 + P313