N-Methylpyrrolidone, widely abbreviated as NMP, is a polar aprotic chemical solvent characterized by high thermal stability and low volatility. It acts as a critical processing medium in Lithium-ion battery manufacturing, specifically functioning as a solvent for polyvinylidene fluoride (PVDF) binders during cathode electrode preparation. This 1-Methyl-2-pyrrolidone is also extensively employed in electronics cleaning and petrochemical extraction due to its superior solvency for high-molecular-weight resins. We provide competitive factory pricing and ensure customized specifications regarding electronic and technical grades. Each batch is supported by full documentation including MSDS, TDS, COA, and is available for bulk supply to global industrial partners.
N-Methylpyrrolidone CAS 872-50-4
- CAS: 872-50-4
- Synonyms: NMP, 1-Methyl-2-pyrrolidone, N-Methyl-2-pyrrolidinone, 1-Methyl-2-pyrrolidinone, N-Methyl-gamma-butyrolactam
- Molecular Formula: C5H9NO
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
1-Methyl-2-pyrrolidinone, colorless, transparent oily liquid, with a slight amine odor. Yeshygroscopicity, stable in neutral medium, easy to decompose in strong bases/acids.
Melting point: -24℃
Boiling point: 202℃
Relative density: 1.028
Refractive index: 1.465-1.470
Flash point: 95°C (closed)
Viscosity: 1.65(20℃ )
surface tension:41.0(25℃ )
Solubility:It is miscible with water, alcohols, ethers, esters, ketones, halogenated hydrocarbons, and aromatic hydrocarbons
Dielectric constant:32.0(25℃)
Toxicity:LD50(rat) approx. 8,200 mg/kg. There are strong permeability, pay attention to pesticides Dispersants When the pesticide penetrates into the human body through the skin and is poisoned, pay attention to protection. In recent years, new studies in Europe and the United States have shown that the accumulated toxicity of this solvent may cause cancer, and the conclusion is not certain. But the European Union and the United States have been covered Dipropylene glycol dimethyl ether- The so-called”Green solvent”The trend of replacement.
Usage:It is widely used in the refining of advanced lubricating oils, the synthesis of polymers, Insulation, pesticides, pigments and cleaning agents, etc. This solvent is a good dispersant for pigments (coatings) and can be applied to water-dispersed coatings, and can also be applied to Solvent-based coatings。
Environmental protection treatment of waste liquid:Used, dirty waste methylpyrrolidone can pass Solvent recovery machine The vacuum reduction system can be recycled. Because its boiling point is relatively high, the direct recovery method cannot be used, and the recovery heating temperature can be reduced through vacuum decompression, ensuring the quality of recovery and improving the recovery Safety
FAQ - Technical & Supply Chain
-
Q:
Is NMP the same chemical substance as N-Methylpyrrolidone?
A: Yes. NMP is the standard industrial acronym for N-Methylpyrrolidone. Both terms refer to the solvent identified by CAS 872-50-4. -
Q:
What grades are available for industrial supply?
A: The product is typically supplied in Technical Grade for general industrial stripping and cleaning, and Electronic Grade (high purity) intended for semiconductor and battery electrode processing applications.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.





