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NMP Instruction:

Chinese alias: NMP; 1-methyl-2-pyrrolidone; N-methyl-2-pyrrolidone. Colorless transparent oily liquid with slight smell of amine. Low volatility, good thermal and chemical stability, and can volatilize with water vapor. Hygroscopic. Sensitive to light. Soluble in water, ethanol, ether, acetone, ethyl acetate, chloroform and benzene, NMP can dissolve most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds. N-methylpyrrolidone is widely used in lithium battery, medicine, pesticide, pigment, cleaning agent, insulating material and other industries.


Properties and Stability:

1. NMP has colorless liquid, with ammonia smell, and low toxicity. It is miscible with water and soluble in most organic solvents such as ether and acetone. It can dissolve most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds.
2. Chemical properties: relatively stable in neutral solution. In 4% sodium hydroxide solution, 50% ~ 70% hydrolysis occurs after 8 hours. It is hydrolyzed gradually in concentrated hydrochloric acid to produce 4-methylaminobutyric acid CH3NH (CH2) 3cooh. Due to the reaction of carbonyl group, ketal or thiopyrrolidone can be produced
3. React with olefins in the presence of alkali catalyst to alkylate at the third position. N-methylpyrrolidone is weakly alkaline and can produce hydrochloride. Form adducts with heavy metal salts, such as heating with nickel bromide to 150 ℃ to form nibr2 (c5h9on) 3, melting point 105 ℃.

Precautions for operation:

Avoid exposure: special guidance is required before use. Avoid contact with skin and eyes. Avoid breathing vapors and fumes. Keep away from sources of ignition No fireworks. Take measures to prevent the accumulation of static electricity.

Storage precautions:

Store in a cool place. Keep the container closed and store in a dry and ventilated place. Open containers must be carefully resealed and kept upright to prevent leakage. Inflatable storage is sensitive to humidity.


N-methylpyrrolidone is an excellent high-grade solvent, polar solvent with strong selectivity and stability, high-precision electronics, circuit boards, lithium batteries, etc. cleaning agents: high-grade coatings, inks and pigments such as degreasing, degreasing, dewaxing, polishing, rust prevention and paint removal, with low toxicity, high boiling point, strong solubility, non flammable, biodegradable and recyclable.NMP is safe to use and suitable for a variety of formula uses.

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