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N-Ethyl-Pyrrolidone
N-Ethyl-Pyrrolidone

SYNONYMS:1-Ethyl-2-pyrrolidone, NEP

 

STRUCTURAL FORMULA

 

    CAS NO.:2687-91-4

    Molecular weight :113.1g/mol

    Density@25οC: 0.993 g/ml

    Boiling Point:212οC

    Melting Point:-77οC

Formula:C6H11NO

    Viscosity@ 25οC:3.5 mPa.s

 

 

SPECIFICATIONS

Appearance

    Clear,colorless liquid

APHA

    50 max.(Pt-Co Color)

Assay

    99.6% min.(by gas chromatography)

?-Butyrolactone

    0.1%max.(by gas chromatography)

Amines

    0.1% max.(by gas chromatography)

Water

    0.1% max.

 

 

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.

 

APPLICATIONS

For higher end,low impurity level applications: 

· lithium ion batteries 

· wafer degreasing 

· photoresist stripper 

· coating developer 

· epoxy deflashing 

 

 

 

PACKING

200kgs plastic drum.

 

 

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.

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.

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