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N-Methyl-2-pyrrolidone (NMP) CAS 872-50-4

N-Methylpyrrolidone (NMP) is a high-performance, strongly polar aprotic solvent, renowned for its exceptional solubility, excellent thermal stability, and low volatility, earning it the title of "universal solvent." It is widely used in lithium-ion battery manufacturing, electronic/semiconductor cleaning, coatings and inks, pharmaceuticals and pesticides, petrochemicals, and polymer synthesis.

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Product Description

In the lithium-ion battery field, NMP is a core solvent for cathode slurry preparation, exhibiting excellent dissolution effects on PVDF binders, making it an indispensable key auxiliary material in the new energy vehicle power battery industry chain. In the electronics industry, it is widely used as a highly efficient cleaning agent and photoresist stripper in semiconductor and LCD/OLED manufacturing. Products are available in industrial, electronic, battery, pharmaceutical, and reagent grades to meet the diverse needs of customers in various industries. Products strictly adhere to national standards such as GB/T 27563-2011, and small-batch trial orders and customized packaging are supported. Leveraging major ports such as Qingdao, Tianjin, and Shanghai, exports are efficient and hassle-free.

Product Information

ItemDescription
Product NameN-Methyl-2-pyrrolidone (NMP)
CAS No.872-50-4
EINECS No.212-828-1
Molecular FormulaC₅H₉NO
Molecular Weight99.13
AppearanceColorless transparent liquid, faint amine odor
Main TypesIndustrial Grade: Purity ≥99.0%-99.5%, for coatings, inks, cleaners, pesticide adjuvants. Largest volume grade.
Electronic Grade (High Purity Grade) : Purity ≥99.9%, metal ions ≤10-20 ppb, strict particle control. For semiconductor cleaning, LCD manufacturing, lithium battery slurry.
Battery Grade (Lithium Grade) : Purity ≥99.8%-99.9%, moisture ≤0.02%, strict metal ion control. For lithium-ion battery cathode slurry (PVDF solvent) – key auxiliary material for EV batteries.
Pharmaceutical Grade: Purity ≥99.5%, for pharmaceutical intermediates, drug carriers, antibiotic extraction.
Reagent Grade (AR/GR) : Purity ≥99.5%-99.9%, for laboratory analysis, reagent preparation.
Key Physical & Chemical PropertiesAppearance: Colorless transparent liquid, faint amine odor; Density: 1.028 g/cm³ (20℃); Melting Point: -24.4℃; Boiling Point: 202℃; Flash Point: 91℃ (closed cup); Solubility: miscible with water, alcohols, ethers, ketones, esters, aromatics, halogenated hydrocarbons; Hygroscopic; Strongly polar aprotic solvent (dielectric constant 32 at 25℃); Good chemical and thermal stability.
Typical Specifications (Battery Grade)Purity: ≥99.8%-99.9%; Moisture: ≤0.02%; Color (APHA): ≤10; Density (20℃): 1.028-1.030 g/cm³; Refractive Index (20℃): 1.467-1.472; Acidity (as acetic acid): ≤0.002%; Metal Ions (Na, K, Fe): ≤10-20 ppb; Particles (≥0.5μm): ≤50/mL.
FeaturesStrongly polar aprotic solvent with excellent dissolving power; fully miscible with water and most organic solvents; good chemical and thermal stability; high boiling point, low volatility; hygroscopic; low toxicity; biodegradable and environmentally friendly.
Main ApplicationsLithium-Ion Battery Manufacturing (fastest growing application – key auxiliary material for EV battery industry) : Core solvent for cathode slurry preparation – dissolves PVDF binder to disperse cathode active materials (LFP, NCM, etc.) and conductive agents to form stable cathode slurry; solvent for separator coating process.
Electronics/Semiconductor Cleaning (high-value application) : Semiconductor wafer cleaning and photoresist stripping; LCD and OLED manufacturing; precision electronic component cleaning; PCB cleaning.
Coatings/Inks: Solvent for polyurethane, epoxy, acrylic coatings, high-temperature baking paints, wire/cable insulating varnishes; ink solvent for screen printing, gravure, inkjet; paint stripper, cleaners.
Pharmaceutical: Pharmaceutical intermediate synthesis (solvent and reaction medium); drug extraction solvent (antibiotics, vitamins, hormones); drug carrier; transdermal absorption enhancer.
Pesticides/Agrochemicals: Solvent and adjuvant for emulsifiable concentrates and suspension concentrates.
Petrochemical/Natural Gas: Acid gas removal (H₂S, CO₂) via physical absorption; aromatic extraction solvent (BTX separation); lubricating oil refining.
Polymer Synthesis: Polymerization solvent for PA, PI, PEEK, PPS, PU and other high-performance polymers.
Others: Plastic auxiliaries, rubber auxiliaries, dye auxiliaries, surfactants, cleaners, metal surface treatment agents, cosmetic solvents, ink solvents, carbon fiber composites.
Packaging200kg drums (steel or plastic), 1000kg/1000L IBC totes, tank trucks; custom packaging available.
Storage ConditionsStore in cool, dry, well-ventilated area; keep sealed to prevent moisture and contamination; avoid strong oxidizers, strong acids, strong alkalis; away from heat sources.
Shipping RequirementsNon-hazardous cargo; protect from leakage, sunlight, rain, and high temperatures; handle with care.
Quality StandardsIndustrial Grade: GB/T 27563-2011; Electronic/Battery Grade: industry standards (procurement specifications of lithium battery and electronics companies); Export reference: ASTM D7044, ISO 15586.


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FAQ

Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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