N-Methyl-2-pyrrolidone
N-methylpyrrolidone (NMP) is a polar non proton switch solvent. It has low toxicity, excessive boiling point, and superb solubility. The benefits of robust selectivity and proper stability. Widely used for fragrant hydrocarbon extraction, purification of acetylene, olefins, and dienes, solvent for polyvinylidene fluoride, electrode auxiliary substances for lithium-ion batteries, desulfurization of artificial gas, refining of lubricating oil, antifreeze of lubricating oil, olefin extraction agent, solvent for polymerization of insoluble engineering plastics, agricultural herbicides, insulation materials, built-in circuit manufacturing, cleansing of precision contraptions and circuit boards in the semiconductor industry, PVC tail fuel recovery, cleansing agents, dye components Dispersants, etc. It is additionally used as a solvent for polymers and as a medium for polymerization reactions, such as engineering plastics and aramid fibers. In addition, it can additionally be used in fields such as pesticides, pharmaceuticals, and cleansing agents. The essential makes use of of N-methylpyrrolidone with unique grades and specs are listed below: 1. Industrial grade: lubricant refining, lubricant antifreeze, artificial fuel desulfurization, digital insulation materials, agricultural herbicides, pesticide additives, PVC tail gasoline recovery, components and dispersants for the manufacturing of high-end coatings, inks, pigments, etc. For example, it is used to extract aromatics from lubricating oil to reap the reason of refining lubricating oil; Due to the high solubility of NMP in resins, it can be used as a solvent for resin addition in the manufacturing of coatings, ground coatings, varnishes, composite coating movie forming, built-in circuit enameled wire insulation materials, fiber fabrics, adhesives, and different products. two Ordinary level: Extraction and restoration of simple natural uncooked materials, such as acetylene awareness and extraction of butadiene, isoprene, fragrant hydrocarbons, etc. It can be used as a solvent for convalescing acetylene from herbal fuel or mild naphtha pyrolysis gas, with a purity of 99.7% for targeted acetylene recovery; As an extractant for isolating and getting better high-purity butadiene from cracked C4 hydrocarbons, the healing price is 97%, and the purity of recovered butadiene is 99.7%. It is used as an extractant for recuperating high-purity isoprene from cracked C5 hydrocarbons, with a recuperation purity of 99%; When used as an fragrant hydrocarbon extractant, due to its excessive solubility and low vapor pressure, the extractant loss fee is low and the fragrant hydrocarbon restoration price is excessive all through the process. three Reagent grade: built-in circuits, tough drives, etc. require strict manage of metallic ion and particle industries such as degreasing, degreasing, dewaxing, polishing, rust prevention, and paint removal. For example, it is used as a photoresist remover, precision gadgets in the IC semiconductor industry, LCD liquid crystal materials, PCB printed circuit boards, and so on Cleaning of tough drives; As properly as synthetic kidney practical membrane solution, seawater desalination membrane answer and different solvents produced in the pharmaceutical industry.
N-methylpyrrolidone is referred to as NMP, molecular formula: C5H9NO, English: 1-Methyl-2-pyrrolidinone, the look is colorless to mild yellow obvious liquid, barely with the odor of ammonia, miscible with water in any proportion, soluble in ether, acetone and ester, haloalkane, fragrant hydrocarbon and different natural solvents, nearly totally combined with all solvents, boiling factor 204 ℃, flash factor ninety one ℃, sturdy hygroscopicity, steady chemical performance, non corrosive to carbon metal and aluminum, Slightly corrosive to copper. It has the blessings of low viscosity, suitable chemical steadiness and thermal stability, excessive polarity, low volatility, and countless compatibility with water and many natural solvents. This product is a micro drug, and the allowable restriction awareness in the air is 100PPM.
Melting point | -24 ° C (lit.) |
Boiling point | 202 ° C (lit.) 81-82 ° C/10mmHg (lit.) |
Density | 1.028g/mLat25 ° C (lit.) |
Vapor density | 3.4 (vsair) |
Vapor pressure | 0.29mmHg (20 ° C) |
Refractive index | n20/D1.479 |
Flash point | 187 ° F |
Storage conditions | Store at+5 ° Cto+30 ° C |
Solubility | ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v) |