N-Methyl Pyrrolidone (NMP)
CAS Number: 872-50-4
N-Methyl-2-pyrrolidone (NMP, ≥99.9%) is a high-boiling, highly polar aprotic solvent with exceptional solvency for engineering polymers including polyimide, polysulfone, and PVDF. It is indispensable in lithium-ion battery electrode slurry preparation, aramid fiber spinning, and pharmaceutical synthesis, though subject to regulatory scrutiny due to reproductive toxicity.
Technical Specifications
| appearance | Colorless to pale yellow clear liquid |
| purity (%) | ≥99.9 |
| water content (%) | ≤0.03 |
| boiling point (°C) | 202.0 |
| density (g/mL, 20°C) | 1.028–1.032 |
Applications
- Lithium-ion battery cathode (LFP, NMC) and anode slurry preparation
- PVDF binder solvent in battery electrode manufacturing
- Aramid and polyimide fiber spinning solvent
- Pharmaceutical synthesis and active ingredient extraction
- Gas purification and acid gas scrubbing (Purisol process)
Key Features
- Ultra-high purity ≥99.9% with extremely low water content critical for battery electrode quality
- Outstanding solvency for PVDF, polyimide, and polysulfone enabling high-performance film casting
- High boiling point enabling complete coating at elevated temperatures before solvent removal
- Battery-grade certification available with trace metal analysis for EV battery supply chains
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CAS Number
872-50-4
Category
Industrial Solvents / ChemicalsAvailability
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