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N-Methyl-2-pyrrolidoneCAS#872-50-4
CAS Number: 872-50-4
Chemical Formula: C5H9NO
Synonyms:
C5H9NO
1-Methyl-2-pyrrolidinone( 99.5%, HyDry, Water≤50 ppm (by K.F.))
1-Methyl-2-pyrrolidinone( 99.5%,）
Appearance: Colorless to light yellow transparent liquid
HS Code: 2933199090
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of N-Methyl-2-pyrrolidoneCAS#872-50-4
N-Methylpyrrolidone (NMP) is a polar aprotic solvent. It has low toxicity, high boiling point, and outstanding solubility. It has the advantages of strong selectivity and good stability. It is widely used in aromatic extraction, purification of acetylene, olefins, and dienes, solvents for polyvinylidene fluoride, electrode auxiliary materials for lithium-ion batteries, synthesis gas desulfurization, lubricant refining, lubricant antifreeze, olefin extractant, solvent for polymerization of insoluble engineering plastics, agricultural herbicides, insulating materials, integrated circuit production, semiconductor industry precision instruments, circuit board cleaning, PVC tail gas recovery, cleaning agent, dye additive, dispersant, etc. It is also used as a solvent for polymers and a medium for polymerization reactions, such as engineering plastics and aramid fibers. It can also be used in pesticides, medicines, and detergents. The main uses of N-methylpyrrolidone of different grades and specifications are listed below:.
Parameters
| 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 | n |
| Fp | 187 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v) |
| form | Liquid |
| pka | -0.41±0.20(Predicted) |
| color | ≤20(APHA) |
| PH | 8.5-10.0 (100g/l, H2O, 20℃) |
| Odor | Slight amine odor |
| PH Range | 7.7 - 8.0 |
| explosive limit | 1.3-9.5%(V) |
| Water Solubility | >=10 g/100 mL at 20 ºC |
| Sensitive | Hygroscopic |
| λmax | 283nm(MeOH)(lit.) |
| Merck | 14,6117 |
| BRN | 106420 |
| Dielectric constant | 32.200000000000003 |
| Stability: | Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases. |
| InChIKey | SECXISVLQFMRJM-UHFFFAOYSA-N |
| LogP | -0.46 at 25℃ |
| Surface tension | 41.3mN/m at 293.15K |
| CAS DataBase Reference | 872-50-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Pyrrolidinone, 1-methyl-(872-50-4) |
| EPA Substance Registry System | N-Methyl-2-pyrrolidone (872-50-4) |
Safety Information
Hazard Codes | Xn,N |
Risk Statements | 22-40-41-43-50-68-R68-R50-R43-R41-R40-R22 |
Safety Statements | 26-36/37/39-61-S61-S36/37/39-S26 |
RIDADR | 2662 |
WGK Germany | 3 |
RTECS | MX3500000 |
Autoignition Temperature | 930 °F |
TSCA | Yes |
HazardClass | 9 |
PackingGroup | III |
HS Code | 29072210 |
Hazardous Substances Data | 123-31-9(Hazardous Substances Data) |
Toxicity | LD50 orally in rats: 320 mg/kg (Woodard) |
IDLA | 50 mg/m3 |
Products Description of N-Methyl-2-pyrrolidoneCAS#872-50-4
Pyrrole; organic solvents; pharmaceutical intermediates; organic raw materials; heterocyclic building blocks; chemical raw materials; ultra-dry solvents; food additives; gas chromatography standards (color scale); CE reagents; chromatography solvents; medical raw materials; dye intermediates; ketones; basic chemical solvents
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