N-Methylpyrrolidone

Chemical name: N-Methylpyrrolidone; 1-Methyl-2-pyrrolidinone, anhydrous; NMP; N-Methyl pyrrolidone; N-Methyl-2-pyrrolidone; N-Methyl-2-pyrrolidinone; N-Methyl-pyrrolidone;
Molecular structural formula:
CAS: 872-50-4

Molecular formula: C₅H₉NO; Molecular weight: 99.134; melting point: -23.6 ℃ Boiling point: 202 ° C; flash point: 95 ℃ 
Characters: liquid with slight ammonia odor , hygroscopic, miscible with water in any proportions, mixed with almost completely all solvents (alcohols, aldehydes, ketones, aromatic hydrocarbons, etc.).

Quality standard:

Item	Electronic grade	industrial-grade
Purity%	99.90min	99.50min
Moisture%	0.02max	0.05max
Chroma APHA	10max	15max
Density (D420) g / ml	1.027-1.035	1.027-1.035
Refractive index (nD20)	1.465-1.475	1.465-1.475
PH value (20ºC) 100g / l	7.5-10	7.5-10

NMP is a heterocyclic compounds, with a series of excellent physical and chemical properties; is a non-toxic, high boiling point, polar, low viscosity, low resistance, high solubility, low volatility, good stability, easy recovery efficient selective solvent.

Applications of NMP (Electronic grade): 
(1) NMP is used as the poly (vinylidene fluoride) solvent, and a lithium ion secondary battery electrode material; 
(2) can be used for photoresist removal fluid, LCD liquid crystal material production; 
(3) the production of solvents used in medicine; 
(4) the semiconductor industry, precision instruments, wash the board.

Applications of NMP (industrial-grade): 
(1) for the petrochemical industry base extraction recovery of organic materials. As from natural gas or light naphtha pyrolysis gas 
Recovering acetylene solvent to recover the concentrate acetylene purity of 99.7%; as separated and recovered from the C4 hydrocarbon cracking high purity butadiene extraction agent, the recovery rate of 97% recovery of the butadiene purity of 99.7% is used as lysis C5 hydrocarbon recovery of high purity isoprene extractant, isoprene recovered 99% purity; because of its high solubility in aromatic and low vapor pressure, the process when the extractant loss rate effect on extraction agent, Aromatic high recovery rate. 
(2) for the lubricating oil refining. Aromatics used in order to achieve the purpose of extraction of refined oil of lubricating oil. 
(3) used as a solvent for the polymer and polymerization. Such as the production of polyphenylene sulfide and aramid, a polymerization solvent polyimide, polyamide, polyurethane and other polymer; 
(4) Since the resin has a greater solubility in NMP as solvent resin processing, specifically for the manufacture of paint, floor paint, varnish, paint film composite, IC enameled class insulation, fabric type and adhesives and other products. 
(5) for industrial detergents, cleaning chemical equipment, plugs, fixtures and paint layer. 
(6) used in pesticides, ink, paint production aids and dispersing agents.

Packing: galvanized drum, net weight 200KG/drum

Storage: Stored in a cool, ventilated warehouse, away from fire and heat. Load gently, and maintain packaging integrity, prevent leaking.