Basic Information
1. Chemical name: N-methylpyrrolidone
2. Chinese alias: 1-Methyl-2-pyrrolidone; N-Methyl-2-pyrrolidone
3. English name: N-Methyl-2-pyrrolidone; NMP
4. Molecular formula: C₅H₉NO
5. Molecular weight: 99.13
6. CAS number: 872-50-4
7. EINECS number: 212-828-1
8. Appearance: Colorless and transparent liquid, with a slight amine odor, and possessing moisture absorption properties
Technical Parameters
project
indicator
Microelectrode
electronic grade
Pharmaceutical grade
Appearance
Colorless and transparent liquid
Colorless and transparent liquid
Colorless and transparent liquid
Purity w/%
≥99.95
≥99.90
≥99.80
Moisture w/%
≤0.01
≤0.01
≤0.05
Color shade Hazen
≤10
≤10
≤20
Total amines (calculated as CH₃NH₂) ppm
≤10
≤15
≤50
pH value (1ml/10ml aqueous solution)
7-9
Density (20℃) g/cm³
1.028—1.035
Refractive index ND²⁰
1.465—1.472
(The above parameters are reference values, and the specific values shall be subject to the factory inspection sheet.)
Packaging Specifications
1. 200kg galvanized iron drum
2. 1000kg IBC drum
3. Bulk tanker