N-methyl pyrrolidone(NMP)
1. Chemical name:N-Methylpyrrolidone; 1-Methyl-2-pyrrolidinone, anhydrous; NMP; N-Methyl pyrrolidone; N-Methyl-2-pyrrolidone; N-Methyl-2-pyrrolidinone; N-Methyl-pyrrolidon
2, CAS: 872-50-4
3. Molecular formula: C5H9NO
4. Molecular weight: 99.134
5. Structural formula:
6, Specific gravity ：1.03
7. Melting point: -23℃
8. Boiling point: 202℃
9. Flash point: 95℃
10, Refractive index (nd20）：1.465-1.475
Scope of application:
NMP is a highly efficient selective solvent, non-toxic, high boiling point, small corrosion, solubility, low viscosity, low volatility, good stability, easy recovery and other advantages, can be used in the petrochemical industry acetylene concentration, aromatic extraction, refining of lubricating oil and purification of ethylene, butadiene;Can also be used as solvent for polymerization, such as polyimide, polyphenylene sulfide and other engineering plastics and aramid fiber;Also can be used in insulation materials, pesticides, pigments and detergents industry;And battery, LCD, semiconductor and other electronic industries.
| Item |
Index |
| |
Industrial grade |
Pharmaceutical grade |
Electronic grade |
Microelectronic grade |
| Purity, % ≥ |
99.50 |
99.80 |
99.85 |
99.90 |
| Moisture, % ≤ |
0.05 |
0.05 |
0.03 |
0.01 |
| Chroma (Pt-Co)# ≤ |
30 |
20 |
10 |
10 |
| Free amine, ppm ≤ |
100 |
50 |
20 |
10 |
| Density（20℃）, g/cm3 |
1.026~1.036 |
| Refractive Index (20℃) |
1.465~1.475 |
| PH Value > |
6-10 |
Packaging:200KG in Galvanized drum / 200KG in PE drum / 1000L in IBC drum / loose packing ISO TANK
Storage and transportation：Store in a cool and ventilated warehouse, far away from kindling and heat source. Handle with care, keep the package intact and prevent leakage.
Next product： α-pyrrolidone (α-P)
