N-Methyl-2-pyrrolidone

N-Methyl-2-pyrrolidone
Names
Preferred IUPAC name
1-Methylpyrrolidin-2-one
Other names
1-Methyl-2-pyrrolidone
N-Methylpyrrolidone
N-Methylpyrrolidinone
Pharmasolve
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.011.662 Edit this at Wikidata
KEGG
UNII
  • InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3 checkY
    Key: SECXISVLQFMRJM-UHFFFAOYSA-N checkY
  • InChI=1/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3
    Key: SECXISVLQFMRJM-UHFFFAOYAL
  • CN1CCCC1=O
Properties
C5H9NO
Molar mass 99.133 g·mol−1
Density 1.028 g/cm3
Melting point −24 °C (−11 °F; 249 K)
Boiling point 202 to 204 °C (396 to 399 °F; 475 to 477 K)
Soluble[1]
Solubility in Ethanol, acetone, diethylether, ethyl acetate, chloroform, benzene Soluble[1]
log P −0.40[2]
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
2
2
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

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, polymer and battery industries as a solvent, exploiting its nonvolatility and ability to dissolve diverse materials (including polyvinylidene difluoride, PVDF).[3] The low toxicity is also a reason to use this solvent.

  1. ^ a b Sigma-Aldrich Co., 1-Methyl-2-pyrrolidinone. Retrieved on 22 March 2022.
  2. ^ "N-Methylpyrrolidone_msds".
  3. ^ Harreus, Albrecht Ludwig; Backes, R.; Eichler, J.-O.; Feuerhake, R.; Jäkel, C.; Mahn, U.; Pinkos, R.; Vogelsang"2-Pyrrolidone, R. (2011). Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_457.pub2. ISBN 978-3527306732.{{cite encyclopedia}}: CS1 maint: numeric names: authors list (link)