N-Methylpyrrolidone (NMP)
High-purity, aprotic, water-miscible solvent widely used in resins, coatings, electronics, cleaning, dispersion, and process applications. Technical grade.
Overview
N-Methylpyrrolidone (NMP) is a colorless to pale yellow liquid with a mild amine-like odor. It is miscible with water and many organics, enabling effective solvency and co-solvency in challenging formulations. Industries rely on NMP for its high polarity, strong solvency, and excellent wetting and dispersion performance.
Common Applications
- ✓Electronics / Microelectronics: process solvent, wafer cleaning, flux and dye removal.
- ✓Coatings & Resins: epoxy stripping, polyurethane and specialty resin processing, pigment dispersion.
- ✓Cleaning & Degreasing: effective solvency for soils, inks, and residues; co-solvent with water/alcohols.
- ✓Floor Polish: co-solvent to improve gloss and film properties.
- ✓Textiles & Plastics: spinning/finishing aids and polymer processing.
- ✓Agrochemicals & Industrial: carrier and process solvent in diverse formulations.
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Typical Specifications
| Grade | Technical |
|---|---|
| CAS Number | 872-50-4 |
| Appearance | Colorless to slightly yellow liquid |
| Odor | Mild amine-like |
| pH (neat) | 8.5 – 10 |
| Specific Gravity (20/20 °C) | ~1.028 |
| Pounds per Gallon | ~8.57 lb/gal |
| Solubility | Completely miscible with water |
| Shipping Option | ~460 lb net weight drum available |
Handling & Compliance Notes
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Formulation & Performance
NMP’s polarity and high solvency power make it an exceptional co-solvent alongside water, alcohols, and other organics. It promotes film formation, improves pigment dispersion, enhances gloss in polishes, and supports resin swelling and removal for stripping applications.
Compatibility & Use
Compatible with many resins, polymers, and additives. Validate in your process; observe temperature, residence time, and material compatibility best practices. For sensitive electronics work, ensure post-cleaning rinses and drying are optimized to spec.
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