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N-Methyl-2-pyrrolidone NMP
N-Methyl-2-pyrrolidone NMP
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N-Methyl-2-pyrrolidone NMP

N-Methyl-2-pyrrolidone (NMP, CAS 872-50-4) is a high-boiling, polar aprotic solvent with excellent solvency, low volatility and strong compatibility with resins, polymers and specialty chemicals. Widely used in lithium battery processing, coatings, electronics, petrochemicals and pharmaceutical intermediates. Available in industrial and anhydrous grades — request NMP solvent price or contact us for bulk supply.

MF: C5H9NO
MW: 99.13
EINECS: 212-828-1

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Product Overview

N-Methyl-2-pyrrolidone (also written 1-methyl-2-pyrrolidinone, 1-methyl pyrrolidin-2-one, n-methylpyrrolidone, or methylpyrrolidone) is a clear, water-miscible organic solvent with strong dissolving power and high boiling point. It is commonly abbreviated as NMP, and is widely used in industrial formulations where a stable, high-performance solvent is required.

NMP is a colorless to light yellow transparent liquid with a slight ammonia odor. It is miscible with water in any proportion. It is soluble in ether, acetone and various organic solvents such as esters, halogenated hydrocarbons, and aromatic hydrocarbons. It is completely mixed with almost all solvents. Boiling point 204℃, flash point 91℃, strong hygroscopicity, stable chemical properties, non-corrosive to carbon steel and aluminum, slightly corrosive to copper. It has the advantages of low viscosity, good chemical and thermal stability, high polarity, low volatility, and unlimited miscibility with water and many organic solvents.


Typical Specifications

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

Fp 

187 °F

Storage Temp. 

Store at +5°C to +30°C.

Solubility 

Ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v)

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