NMP (N-Methyl-2-pyrrolidone)

NMP (N-METHYL-2-PYRROLIDONE) – HIGH-BOILING POWERFUL APROTIC SOLVENT

NMP (N-Methyl-2-pyrrolidone) is a powerful aprotic solvent with a high boiling point, low volatility and full miscibility with water. It is used in lithium battery production, industrial cleaning, paints, resins and many applications.

PRODUCT INFORMATION / Introduced packaging: industrial drums. The product is a clear, hygroscopic, high-boiling liquid. Acceptance criteria must be based on the COA of the actual batch delivered.

1. What Is NMP (N-METHYL-2-PYRROLIDONE)?

NMP (N-Methyl-2-pyrrolidone) is an organic compound with the formula C5H9NO, a lactam that exists as a clear, hygroscopic liquid with a mild characteristic odour. Thanks to its strong solvency, high boiling point and low volatility, NMP is an important aprotic solvent in lithium battery production, industrial cleaning, paints, engineering plastics and many speciality applications.

2. Product Identification and Technical Data

Property	Information
Product name	NMP (N-Methyl-2-pyrrolidone)
Common names	1-Methyl-2-pyrrolidone; N-Methylpyrrolidinone
Chemical formula	C5H9NO
CAS No.	872-50-4
EC No.	212-828-1
Molecular weight	99.13 g/mol
Appearance	Clear, slightly hygroscopic liquid
Odour	Mild characteristic odour
Solubility	Fully miscible with water and many solvents
Flash point	~91°C (closed cup)
Packaging	Industrial drums
Origin shown on packaging	Korea / China / Taiwan

2.1. Typical Commercial Specifications

Parameter	Typical reference
Purity	≥ 99.8%
Density (25°C)	~1.027
Boiling point	202°C
Melting point	-25°C
Flash point	~91°C (closed cup)
Vapour pressure (20°C)	< 0.3 mmHg
Water content	≤ 0.05%
Colour (APHA)	≤ 40
Other parameters	According to batch COA

TECHNICAL NOTICE / The values in this document are provided for reference only and do not replace the TDS, SDS or COA. Acceptance must be verified against the documentation of the actual delivered batch.

3. Key Features

• Strong solvency for many polymers and organic compounds.
• High boiling point and low volatility for stable processes.
• Fully miscible with water and many solvents.
• High purity suitable for electronics and battery applications.
• Good chemical and thermal stability.

4. Applications

4.1. Lithium Batteries and Electronics

• Solvent for electrode slurries in lithium battery production.
• Cleaning solvent for electronic components.
• Extraction solvent in electronic processes.
• Component in films and technical materials.
• Solvent in semiconductor production when suitable grade.

4.2. Paints, Resins and Cleaning

• Solvent in paints, inks and coatings.
• Solvent for engineering plastics and polymers.
• Component in industrial cleaners.
• Paint-stripping and industrial cleaning solvent.

4.3. Chemicals and Pharmaceuticals

• Solvent in pharmaceutical and speciality chemical synthesis.

5. Instructions for Use

• Use according to the technical guidance and recommended parameters of the manufacturer.
• Blend only with materials whose compatibility has been assessed.
• Perform compatibility and small-scale tests before full-scale production.
• Check shelf life, container condition and labels before use.
• Do not mix with incompatible chemicals without a technical assessment.

6. Safety, Storage and Transportation

• Wear safety goggles, gloves, organic-vapour respirator and protective clothing when handling NMP.
• Work in a well-ventilated area; vapours are heavier than air and may accumulate in low-lying areas.
• Store in a dry, cool warehouse away from heat sources; keep drums on pallets.
• Keep containers closed when not in use; keep away from open flame, sparks, static electricity and heat sources.
• Separate from strong oxidisers and incompatible chemicals.
• Do not discharge large quantities into drains, surface water or groundwater.
• Protect cargo from rain, secure the load and keep labels intact.
• If large amounts of vapour are inhaled, move the person to fresh air and seek medical attention. In case of eye contact, rinse with clean water for at least 15 minutes.

7. Selection and Acceptance Criteria

• Verify the COA of the actual delivered batch against the technical requirements.
• Check appearance, colour, clarity and visible impurities.
• Check container condition, seals, labels and traceability information.
• Review the SDS for storage and emergency handling.
• Check homogeneity, water-insoluble matter and batch-specific parameters.

8. Frequently Asked Questions