We are one of the leading N-Methyl-2-Pyrrolidone suppliers NMP manufacturers in china, if you want to buy 1-Methyl-2-Pyrrolidinone from china, feel free to contact us for competitive price and free sample of N-Methyl Pyrrolidone.
Product: N-METHYL-2-PYRROLIDONE
Synonym:NMP, N-Methyl pyrrolidone; 1-Methyl-2-Pyrrolidinone
CAS :872-50-4
EINECS:212-828-1
Molecular formula: C5H9NO
Molecular weight: 99.134
Molecular structure:
Melting point: -23.60ºC
Boiling Point: 202ºC
Flash point (closed cup)/20ºC: 890ºC
Viscosity (200C, mPas): 1.796
Specifications:
| Items | Reagent grade | Electronic grade | Pharmaceutical grade | Industrial grade |
| Purity (GC, wt%) | ≥99.90 | ≥99.90 | ≥99.80 | ≥99.50 |
| Water (K.F., wt%) | ≤0.01 | ≤0.02 | ≤0.03 | ≤0.05 |
| Chroma (Hazen, APHA) | ≤5 | ≤10 | ≤20 | ≤25 |
| Density (@20ºC,g/ml) | 1.026~1.036 | 1.026~1.036 | 1.026~1.036 | 1.026~1.036 |
| Refractive index (@20ºC) | 1.465~1.475 | 1.465~1.475 | 1.465~1.475 | 1.465~1.475 |
| PH value (20ºC) 50% | 6.5~9.0 | 6.5~9.0 | 6.5~9.0 | 6.5~9.0 |
| Total amine (50%,ppm) | ≤10 | ≤20 | ≤30 | ≤50 |
| Chloride (Cl) ppm | ≤0.1 | ≤0.25 | ≤0.5 | ≤1 |
| Phosphate (PO4) ppm | ≤0.1 | ≤0.25 | ≤0.5 | ≤1 |
| Sulfate (SO4) ppm | ≤0.1 | ≤0.25 | ≤0.5 | ≤1 |
| Nitrate (NO3) ppm | ≤0.01 | ≤0.25 | ≤0.5 | ≤1 |
| Li, ppb | ≤10 | ≤20 | – | – |
| Na, ppb | ≤10 | ≤20 | – | – |
| Mg, ppb | ≤10 | ≤20 | – | – |
| Al, ppb | ≤10 | ≤20 | – | – |
| K, ppb | ≤10 | ≤20 | – | – |
| Ca, ppb | ≤10 | ≤20 | – | – |
| Cr, ppb | ≤10 | ≤20 | – | – |
| Mn, ppb | ≤10 | ≤20 | – | – |
| Fe, ppb | ≤10 | ≤20 | – | – |
| Co, ppb | ≤10 | ≤20 | – | – |
| Ni, ppb | ≤10 | ≤20 | – | – |
| Cu, ppb | ≤10 | ≤20 | – | – |
| Zn, ppb | ≤10 | ≤20 | – | – |
| Ag, ppb | ≤10 | ≤20 | – | – |
| Cd, ppb | ≤10 | ≤20 | – | – |
| Pb, ppb | ≤10 | ≤20 | – | – |
| Ti, ppb | ≤10 | ≤20 | – | – |
| B, ppb | ≤10 | ≤20 | – | – |
| As, ppb | ≤10 | ≤20 | – | – |
| Au, ppb | ≤10 | ≤20 | – | – |
| Hg, ppb | ≤10 | ≤20 | – | – |
Hebei Guanlang Biotechnology Co., Ltd. belongs to Guanlang Group, which was founded in 2007 , located in Shijiazhuang city which is the capital of Hebei Province and hub sector among Beijing Tianjin and Hebei and has advantage of convenient transportation . Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.We have our own factory and lab,also offer customized synthesis service for our customers.
