Properties：
NEP is colorless and transparent liquid,has the weak alkaline,boiling point:212℃,is a strong polar organic solvent, miscible with water and organic solvents in any proportion.
Specification:
 指标/index 规格/Specification
| 试剂级Reagent class | 电子级Electric class | 工业级Industrial class | 普通级Common class |
外观形状/Appearance | 无色透明澄清液体 | 无色透明澄清液体 | 无色透明澄清液体 | 无色透明或淡黄色澄清液体 |
纯度(GC,wt%)Purity | ≥99.8 | ≥99.5 | ≥99.0 | ≥98.5 |
水分（K.F.,wt%)Moisture | ≤0.05 | ≤0.1 | ≤0.3 | ≤0.5 |
色度（Hazen）Color | ≤20 | ≤25 | ≤30 | ≤40 |
密度（D420)Density | 0.994～0.999 | 0.992～0.999 | 0.990～0.999 | 0.990～0.999 |
折光率（Nd20)Refractivity | 1.465～1.467 | 1.465～1.467 | 1.465～1.467 | 1.465～1.467 |
pH值pH walue | 7～9 | 7～9 | 7～10 | — |
游离胺（以-乙胺计，wt%)Total Amines(As Ethyl amine) | ≤0.005 | ≤0.01 | ≤0.02 | — |
γ-丁内酯（GC，wt%)γ-butyrolactone | ≤0.02 | ≤0.03 | ≤0.05 | — |
APPLICATION:
· Industrial electronics · Paints & coatings · Pharmaceutical chemicals · Process solvents |
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N-Ethylpyrrolidone (NEP) is a clear, almost colorless liquid.It can be used for the following applications:
Microelectronics
Ethylpyrrolidone can be used as solvent in photoresist stripper formulations.
Electronics
Ethylpyrrolidone can be used in electrolyte formulations for electrolytic capacitors.
Cryogenic applications
Due to its low freezing point, ethylpyrrolidone is used as solvent in cryogenic reaction conditions.
Pharmaceuticals
Ethylpyrrolidone can be used as raw material for the production of several antipsychotics and antibiotics.
Solvent for diclofenac in topical formulations, solvent in acne remedies.
Transdermal transport enhancer.
Lithographic printing
Ethylpyrrolidone can be used in dampening water for lithographic printing plates.
Jet printing ink
Ethylpyrrolidone is used in the formulation of jet printing ink.
Other
Liquid cleaning composition.
Solvent for radical polymerisation inhibitor.
Composition of detergent for liquid crystal cell.
Packing
Galvanized iron or plastic packaging drums,a drum net weight specifications 1000KG,200KG,25KG,4KG.
ISO tank,net weight 25tons per vehicle.
