SHigh Quality good supplier 1-N-methyl-2-pyrrolidone（NMP）low price 872-50-4
Hazard Codes T,Xi
Risk Statements 45-65-36/38-36/37/38-61-10-46
Safety Statements 41-45-53-62-26
RIDADR UN 1268 3/PG 3
WGK Germany 1
RTECS UY5790000
F 3-8-10
Autoignition Temperature 518 °F
TSCA Y
HS Code 29339900
Hazardous Substances Data 872-50-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 3598 mg/kg LD50 dermal Rabbit 8000 mg/kg
MSDS Information
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1-Methyl-2-pyrrolidinone Usage And Synthesis
Chemical Properties 1-Methyl-2-pyrrolidinone (NMP) has a molecular formula of C5H9NO, and it is a colorless to light yellow transparent liquid with a slight ammonia odor. Its boiling point is 204℃, flash point is 91℃, chroma HaZen≤25, refractive index N20D 1.468-1.471, density is 1.032-1.035. It is miscible in water at any ratio, it is soluble in ethanol, acetone, esters, halogenated hydrocarbons, aromatic hydrocarbons and other organic solvents, and it can completely mix with practically all solvents. It is strongly hygroscopic, chemically stable, not corrosive towards carbon steel and aluminum, and slightly corrosive to copper. It has low adhesiveness, strong chemical and thermal stability, high polarity, and low volatility. This product is slightly toxic, and its permitted concentration limit in air is 100PPM.
Uses
1-Methyl-2-pyrrolidinone (NMP) is a polar aprotic solvent that has the advantages of low toxicity, high boiling point, outstanding solvency, strong selectivity and good stability. It is widely used in purification of aromatic hydrocarbon extraction, acetylene, olefins, and diolefins.
It is used in industrial cleaning, and it serves as a solvent for production of pesticides, engineering plastics, coatings, synthetic fibers, and integrated circuits.
It can also be used as an industrial cleanser, dispersant, dye, lubricant and antifreeze.
1-Methyl-2-pyrrolidinone is an excellent solvent, widely used in aromatics extraction, lubricating oil refining, acetylene enrichment, butadiene separation and synthesis gas desulfurization.
It is used in gas desulfurization, lubricating oil refining, lubricating oil antifreeze, olefin extraction, and as a solvent for insoluble engineering plastics polymerization.
It can be used in herbicide, to clean insulation materials, semiconductor industry precision instruments and circuit boards, to recycle PVC exhaust, as a detergent, dye supplement and dispersing agent.
It is used in mediums for polymerization reactions such as engineering plastics and aramid fiber.
1-Methyl-2-pyrrolidinone is used as a polyvinylidene fluoride solvent and electrode auxiliary material for lithium ion batteries.
high purity grade for ICP-MS detection.
For peptide synthesis.
Chemical Properties l-Methyl-2-pyrrolidone can undergo a number of chemical reactions even though it is accepted as a stable solvent. It is resistant to hydrolysis under neutral conditions, but strong acid or base treatment results in ring opening to 4-methyl aminobutyric acid. l-Methyl-2-pyrrolidone can be reduced to 1-methyl pyrrolidine with borohydride. Treatment with chlorinating agents results in amide formation,an intermediate which can undergo further substitution, while treatment with amyl nitrate yields the nitrate. Olefins can be added to the 3 position by treatment first with oxalic esters, then with appropriate aldehyes (Hort and Anderson 1982).