N-Methyl-2-pyrrolidone

Synonyms：1-Methyl-2-pyrrolidone; NMP

CAS No.：872-50-4

EINECS No.：212-828-1

Molecular Formula：C₅H₉NO

Molecular Weight：99.13

Structure Formula：

Standard：

Properties：N-Methylpyrrolidone (NMP) is a colorless transparent oily liquid with a slight amine odor, strong hygroscopicity and light sensitivity; Melting point: -24.4℃, Boiling point: 202℃, Density: 1.028g/mL (25℃), Refractive index: 1.47 (20℃), Viscosity: 1.67cp (25℃), Dielectric constant: 32.2, Closed-cup flash point: approx. 91℃, Vapor pressure: 0.29mmHg (20℃); It is miscible with water in any ratio and also soluble in most organic solvents such as alcohols, ethers, esters, ketones, chlorinated hydrocarbons and aromatics. The surface tension at 25℃ is 41.3mN/m, with high polarity, low volatility and good thermal stability..

Applications：N-Methylpyrrolidone (NMP) is a highly polar, aprotic solvent characterized by low toxicity, high boiling point, excellent solvency, strong selectivity, and good chemical stability. It is widely used in the following fields:
1. Advanced microelectronics industries, such as liquid crystal displays, semiconductors, printed circuit boards, and carbon nanotubes.
2. Production of aramid fibers, PPS, ultrafiltration membranes, photoresist etching for OLED panels, and lithium batteries.
3. Pharmaceutical, medical, and veterinary industries as a solvent and intermediate.

Storage：Keep in tightly sealed containers and store in a cool, dry, and well-ventilated warehouse. Keep away from sources of ignition and direct sunlight.

Packing：Available in galvanized steel drums, painted steel drums, or HDPE drums, with a net weight of 200 kg per drum. IBC containers or ISO tanks are also available upon request.