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3.PACKAGE：

Iron drums.

N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam. It is a colorless liquid, although impure samples can appear yellow. It is miscible with water and with most common organic solvents. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide. It is used in the petrochemical and plastics industries as a solvent, exploiting its nonvolatility and ability to dissolve diverse materials.
Preparation
NMP is produced industrially by a typical ester-to-amide conversion, by treating butyrolactone with methylamine. Alternative routes include the partial hydrogenation of N-methylsuccinimide and the reaction of acrylonitrile with methylamine followed byhydrolysis. About 20,000 to 30,000 tons are produced annually.
Applications
NMP is used to recover certain hydrocarbons generated in the processing petrochemicals, such as the recovery of 1,3-butadiene andacetylene. It is used to absorb hydrogen sulfide from sour gas and hydrodesulfurization facilities. Due to its good solvency properties NMP is used to dissolve a wide range of polymers. It also used as a solvent for surface treatment of textiles, resins, and metal coated plastics or as a paint stripper. It is utilized as a solvent in the commercial preparation of polyphenylene sulfide. In the pharmaceutical industry, N-methyl-2-pyrrolidone is used in the formulation for drugs by both oral and transdermal delivery routes. It is also used heavily in lithium ion battery fabrication, as a solvent for electrode preparation, though there is much effort to replace it with solvents of less environmental concern, like water.

Product Name:1-Methyl-2-pyrrolidinone
Synonyms:N-METHYLPYROLIDONE;N-METHYLPYRROLID-2-ONE;N-METHYLPYRROLIDINONE;N-METHYLPYRROLIDNONE;N-METHYLPYRROLIDONE;NMP-T;NMP-EL
CAS:872-50-4
MF:C5H9NO
MW:99.13
EINECS:212-828-1
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)
Water Solubility >=10 g/100 mL at 20 ºC
Stability:Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.