| SYNONYMS: 1-Ethyl-2-pyrrolidone, NEP |
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| STRUCTURAL FORMULA |
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CAS NO.:2687-91-4 |
| Molecular weight :113.1g/mol |
| Density@25℃: 0.993 g/ml |
| Boiling Point:212℃ |
| Melting Point:-77℃ |
| Formula:C6H11NO |
Viscosity@ 25℃:3.5 mPa.s |
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| SPECIFICATIONS |
| Appearance |
Clear,colorless liquid |
| APHA |
50 max.(Pt-Co Color) |
| Assay |
99.6% min. (by gas chromatography) |
| γ-Butyrolactone |
0.1%max. (by gas chromatography) |
| Amines |
0.1% max. (by gas chromatography) |
| Water |
0.1% max. |
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| DISCRIPTIONS |
| N-ethylpyrrolidone (NEP) is the lactam of 4-ethylaminobutyric acid and a very weak base. NEP is a chemically stable and powerful polar solvent. These characteristics are highly useful in a variety of chemical reactions where an inert medium is of concern. Despite the stability of NEP, it can also play an active role in certain reactions: hydrolysis, oxidation, condensation, conversion with chlorinating agents, polymerization and o-alkylation, and related reactions. |
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| APPLICATIONS |
| For higher end,low impurity level applications: |
| · lithium ion batteries |
· wafer degreasing |
| · photoresist stripper |
· coating developer |
| · epoxy deflashing |
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| PACKING |
| 200kgs plastic drum. |
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| SAFETY |
Care should be used when handling NEP. Skin contact should be avoided. Contact,can resultin irritation; prolonged contact can result in redness and dermatitis. Butylrubber or FEPTeflon gloves are recommended when handlingNEP. A good skincream should be used afterwashing the affected area. As with all solvents, theworkplace should be well ventilated andsafety goggles must be worn.
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| STORAGE & HANDLING |
| NEP has an almost unlimited shelf life in sealed containers when properly stored in a protected storage area in original unopened containers or protected from moisture. It is neither explosive nor spontaneously flammable in air. However, it is combustible. When ignited, NEP will sustain a fire. All types of fire extinguishers are effective against NEP fires. |
