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N-Methylpyrrolidone Instruction:

N-Methylpyrrolidone is an organic substance with the chemical formula C5H9NO, a colorless to light yellow transparent liquid with a slight ammonia odor, miscible with water in any ratio, soluble in various organic solvents such as ether, acetone and esters, halogenated hydrocarbons, aromatic hydrocarbons, etc..


NMP Uses:

NMP is widely used in the refining of advanced lubricants, synthesis of polymers, insulating materials, pesticides, pigments and cleaning agents, etc. . This solvent is a good dispersant for pigments (coatings), and can be applied to water-dispersion coatings.

NMP Description:

NMP is a high boiling point liquid with very high solubility for H2S. NMP is particularly suitable for purification of high pressure, high CO2 content synthesis gases in gasification applications.

N-methyl-pyrrolidone, also known as NMP or 1-methyl-2-pyrrolidone, is a solvent used in a range of products. The average consumer is most likely to encounter NMP in paint strippers, although safer alternatives exist.NMP has been strongly associated with developmental effects, including abortion.

NMP Stability:

Colorless liquid with the odor of ammonia, the product has little toxicity. Miscible with water, soluble in most organic solvents, such as ether and acetone. Can dissolve most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds.

NMP Chemical Properties:

Relatively stable in neutral solution. After 8 hours in 4% sodium hydroxide solution, 50%-70% is hydrolyzed. In concentrated hydrochloric acid, hydrolysis occurs gradually to produce 4-methylaminobutyric acid CH3NH(CH2)3COOH. due to the reaction of carbonyl group, condensation ketone or thiopyrrolidone can be produced.

N-Methylpyrrolidone is weakly basic and can produce hydrochloride. NMP forms adducts with heavy metal salts, for example, with nickel bromide heated to 150°C to form NiBr2(C5H9ON)3 with a melting point of 105°C.


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