Sino Great Enterprise Ltd
Sino Great Enterprise Ltd
N-Methyl-Pyrrolidone (NMP)
Product name: N-Methyl-Pyrrolidone
Chemical name: N-Methyl-2-pyrrolidinone; 1-Methyl-2-pyrrolidone; N-Methyl-2-Pyrrolidone; NMP
CAS NO.: 872-50-4
Molecular formula: C5H9NO
Molecular weight: 99.134
Melting point: -23.60℃
Boiling Point: 202℃
Flash point (closed cup)/20℃: 890℃
Viscosity (200C, mPas): 1.796
Ignition temperature: 245℃
Properties: Colourless transparent liquid, it has strong water absorption. It can almost dissolve in all the solvents
Specification and indicators
Items | Micro-electronic 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 (@200Cjg/ml) | 1.026~ 1.036 | 1.026 ~ 1.036 | 1.026 ~ 1.036 | 1.026 ~ 1.036 |
Refractive index (@20℃) | 1.46~1.475 | 1.465 ~1.475 | 1.465 ~1.475 | 1.465 ~1.475 |
PH value (20℃) 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 |
Heavy metal | ≤10 | ≤20 | ≤50 | ≤100 |
Application: 1. Micro-electronic grade: It is applicable to LCD, semiconductor, circuit boards, carbon nanotubes and other high-end microelectronic industry. |
Storage and transportation: Store in cool and airy place; keep away from fire and heat; handle with care; avoid leakage. |