N-METHYL-2-PYRROLIDONE

PRODUCT IDENTIFICATION

CAS NO. 872-50-4

N-METHYL-2-PYRROLIDONE

EINECS NO. 212-828-1
FORMULA C5H9NO
MOL WT. 99.13
H.S. CODE 2933.79.0090

TOXICITY

Oral rat LD50: 3914 mg/kg
SYNONYMS 1-Methyl-2-pyrrolidinone; 1-Methyl-5-Pyrrolidinone;
Methylpyrrolidone; N-Methylpyrrolidone; N-Methyl-2-Pyrrolidone; NMP; 1-Methyl-2-pyrrolidone; m-pyrrole; 1-Methylpyrrolidinone; N-methylpyrrolidinone; N-Methyl-2-pyrrolidinone;

SMILES

C1(N(CCC1)C)=O

CLASSIFICATION

Lactam, Solvent, Intermediate

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Clear, colorless liquid (turns yellow on exposure to heat)
MELTING POINT -24 C
BOILING POINT 202 C
SPECIFIC GRAVITY 1.03
SOLUBILITY IN WATER Miscible (1.00E+06 mg/l at 25 C)
pH

7.5 - 8.0

VAPOR DENSITY 3.4
AUTOIGNITION

346 C

log Pow -0.38 (Octanol-water)
VAPOR PRESSURE 0.345 (mmHg)
HENRY'S LAW 3.20E-09 (atm-m3/mole at 25 C)
OH RATE 7.40E-11 (cm3/molecule-sec at 25 C Atmospheric)
NFPA RATINGS Health: 2 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

1.4700
FLASH POINT

93 C

STABILITY Stable under ordinary conditions. Hygroscopic

GENERAL DESCRIPTION & EXTERNAL LINKS

Pyrrolidone is a keto-pyrrole, that is a 5-membered lactam structure compound (gamma-butyrolactam). Lactam structure compound including pyrrolidone has good solvency property, therefore useful in industrial application. It is an important part of antibiotics, such as penicillin. These structures, cyclic esters and analogues, are active nucleuses in pharmacological activity and flavorings. Lactams have big demand in artificial fibre industry. They are polymerizable and used as nylon precursors. 2-Pyrrolidone is used as a solvent for surface treatment for textiles, metal coated plastics, polymers, and paint removing. Pyrrolidone and its derivatives are used as Intermediates for the synthesis of agrochemicals, pharmaceuticals, textile auxiliaries, plasticizers, polymer solvent, stabilizers, specialty inks and as a nylon precursor. NMP is used as a solvent for paint stripping and resins; cleaner for polymeric residues; metal finishing; printed circuit board manufacturing; SBR latex production; pigment dispersant; extraction of acetylene and butadiene; dehydration of natural gas; lube oil processing;

Wikipedia Linking:http://en.wikipedia.org/wiki/N-methyl-2-pyrrolidone

http://www.sigmaaldrich.com
......1-Methyl-2-pyrrolidone is a polar solvent that is used in organic chemistry and polymer chemistry. Large scale applications include the recovery and purification of acetylenes, olefins, and diolefins, gas purification, and aromatics extraction from feedstocks. Several reports have described the use of NMP as a solvent in the synthesis of such compounds as a 5,10-dideaza-5,6,7,8-tetrahydrofolic acid, substituted thioamides, and gels derived from polyallylamine and carbon dioxide.2,3,4 The preparation of intercalation compounds of NMP with kaolinite has been described. The reactivity of an epoxyhydroxylinoleic acid derivative with lysine groups in NMP as a model of lipid peroxidation has been investigated.......

http://www2.basf.us/
Product Overview

  • N-Methylpyrrolidone (NMP) is a slowly evaporating liquid with low viscosity and excellent solvency power.
  • NMP is colorless, has a faint amine odor and is soluble in water and conventional organic solvents.
  • NMP is used in a wide range of industrial applications, including process chemicals, engineering plastics, coatings, agricultural chemicals, electronics, paint stripping and cleaning, adhesives and pigment dispersions.
  • Although NMP is used in industrial chemical processes, consumers may potentially come into contact with NMP through the use of certain commercially available products, such as certain paint removers or cleaning agents.
  • NMP is classified as a combustible liquid and will sustain a fire, when ignited........
SALES SPECIFICATION

APPEARANCE

clear to slightly yellow liquid

ASSAY

99.0% min

WATER

1.0% max

COLOR (APHA)

50 max

TRANSPORTATION
PACKING 200kgs in drum
HAZARD CLASS  
UN NO.

1993

OTHER INFORMATION