| Identification | More | 【Name】
1-Methyl-2-pyrrolidinone | 【CAS】
872-50-4 | 【Synonyms】
1-METHYL-2-PYRROLIDINONE
1-METHYL-2-PYRROLIDONE
M-PYROL(R)
N-METHYL-2-KETOPYRROLIDINE
N-METHYL-2-PYROLLIDONE
N-METHYL-2-PYRROLIDINONE
N-METHYL-2-PYRROLIDONE
N-METHYLPYROLIDONE
N-METHYLPYRROLID-2-ONE
N-METHYLPYRROLIDINONE
N-METHYLPYRROLIDNONE
N-METHYLPYRROLIDONE
NMP
NMP-EL
NMP-T
0131
1-methyl-2-pyrrolidinon
1-Methyl-5-pyrrolidinone
1-Methylazacyclopentan-2-one
1-Methylazacyclopentane-2-one | 【EINECS(EC#)】
212-828-1 | 【Molecular Formula】
C5H9NO | 【MDL Number】
MFCD00003193 | 【Molecular Weight】
99.13 | 【MOL File】
872-50-4.mol |
| Chemical Properties | Back Directory | 【Appearance】
colourless or light yellow liquid with an amine odour | 【mp 】
−24 °C(lit.)
| 【bp 】
202 °C(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
| 【Fp 】
187 °F
| 【storage temp. 】
2-8°C
| 【color 】
≤20(APHA)
| 【Stability:】
Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases. | 【Water Solubility 】
>=10 g/100 mL at 20 ºC | 【Sensitive 】
Hygroscopic | 【Merck 】
14,6117 | 【Detection Methods】
GC | 【BRN 】
106420 | 【CAS DataBase Reference】
872-50-4(CAS DataBase Reference) | 【NIST Chemistry Reference】
2-Pyrrolidinone, 1-methyl-(872-50-4) | 【Storage Precautions】
Store under nitrogen;Moisture sensitive | 【EPA Substance Registry System】
872-50-4(EPA Substance) |
| Safety Data | Back Directory | 【Hazard Codes 】
T,Xi | 【Risk Statements 】
R45:May cause cancer.
R65:Harmful: May cause lung damage if swallowed.
R36/38:Irritating to eyes and skin . | 【Safety Statements 】
S41:In case of fire and/or explosion do not breathe fumes . | 【RIDADR 】
UN 1268 3/PG 3
| 【WGK Germany 】
1
| 【RTECS 】
UY5790000
| 【F 】
3-8-10 | 【Hazardous Substances Data】
872-50-4(Hazardous Substances Data) |
| Hazard Information | Back Directory | 【General Description】
A clear colorless liquid with a "fishlike" odor. Denser than water. Flash point 199°F. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. | 【Reactivity Profile】
This amine is a very mild chemical base. N-METHYL-2-PYRROLIDONE(872-50-4) does tend to neutralize acids to form salts plus water. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. | 【Air & Water Reactions】
Soluble in water. | 【Health Hazard】
Inhalation of hot vapors can irritate nose and throat. Ingestion causes irritation of mouth and stomach. Contact with eyes causes irritation. Repeated and prolonged skin contact produces a mild, transient irritation. | 【Fire Hazard】
Special Hazards of Combustion Products: Toxic oxides of nitrogen may be formed in fire. |
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