Welcome to Henan Sinotech!
Chinese english French Japanese Korean Russian

N-Methylpyrrolidone(NMP) 99.85%min


Chemical Name: N-Methylpyrrolidone

Synonyms: 1-Methyl-2-pyrrolidinone;NMP

CAS No. :872-50-4
Molecular Formula: C5H9NO         Molecular Weight: 99.134

Melting point: -23.6 ℃         Boiling point: 202 ° C

Flash point(closed cup): 91 ℃     Viscosity (20, mPas): 1.796

Ignition temperature: 245 ℃

Properties: NMP belongs Heterocyclic Compound, with excellent physical and chemical properties; it is a non-toxic, efficient & selective solvent, with high boiling point, polarity, low viscosity, corrosion, solubility, low volatility, good stability, and recovery capacity.




Reagent grade

Electronic grade

General grade

Industrial Grade

Purity (wt%, GC)

≥ 99.9

≥ 99.9

≥ 99.85

≥ 99.5

Water (wt%, KF)

≤ 0.01

≤ 0.02

≤ 0.03

≤ 0.05

Chroma (Hazen)

≤ 10

≤ 10

≤ 20

≤ 30

Density (D420g/ml)

1.032 ~1.035




Refractive index (ND20)

1.466 ~1.472

1.466 ~1.472

1.466 ~1.472

1.466 ~1.472


NMP is an important chemical raw material, a polar solvent with good selectivity and stability properties , low toxicity, high boiling point , strong solvency, non-inflammable, has many advantages, such as the biodegradation, reutilization, safety in use and suitable for many kinds of prescription,etc.

※Reagent grade: It is applicable to LCD, semiconductor, circuit boards, carbon nanotubes and other high-end microelectronic industry.
※Electronic grade: It is applicable to lithium batteries, aramid fiber, PPS, ultrafiltration film and other industries.
※General grade: It is applicable to medical, pharmaceutical, veterinary solvents, intermediates and other industries.
※Industrial grade: It is applicable to the acetylene concentration, butadiene extraction, electrical insulating materials, high-grade paints, pesticide adjuvants, inks, paints, industrial cleaning agent and other industries.


Packing, Storage and transportation:
In galvanized iron or plastic drums of 200kg (N.W.),1x20" FCL: 16Mt/80Drums, 1x20" ISO TANK: 24Mt. IBC plastic drums of 1000kg (N.W.)

Stored in a cool and well ventilated warehouse, Keep away from fire and heat source, separate from oxidizer. Be cautions of loading and unloading. Prevent package form damage. Avoid, leakage.