English name: N-Methyl-2-pyrrolidone
CAS Number: 872-50-4
Molecular formula: C5H9NO
Molecular weight: 99.13
EINECS number: 212-828-1
MDL No. : MFCD00003193
Stats
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
Flash point 187 °F
Storage conditions Store at +5°C to +30°C.
ethanol solubility: miscible0.1ML/mL, clear, colorless (10%, v/v)
Liquid form
Acidity coefficient (pKa)-0.41±0.20(Predicted)
Color ≤20(APHA)
The Odor is Slight amine odor
PH 8.5-10.0 (100g/l, H2O, 20℃)
Acid-base indicator discoloration ph range 7.7-8.0
explosive limit 1.3-9.5%(V)
Water solubility >=10 g/100 mL at 20 ºC
Maximum wavelength (λmax)283nm(MeOH)(lit.)
Sensitivity Hygroscopic
Merck14, 6117
BRN106420
Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.
InChIKeySECXISVLQFMRJM-UHFFFAOYSA-N
LogP-0.46 at 25℃
Safety information
hazard symbol (GHS)GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08
Danger
Risk Description H315-H319-H335-H360D
Precautions P202-P261-P264-P302+P352-P305+P351+P338-P308+P313
Hazard category code 45-65-36/38-36/37/38-61-10-46
Safety instructions 41-45-53-62-26
WGK Germany1
RTECS number UY5790000
F3-8-10
Spontaneous combustion temperature 518 °F
TSCAY
Customs Code: 2933199090
LD50 orally in Rabbit: 3598 mg/kg LD50 dermal Rabbit 8000 mg/kg
China
