BDO and Its Derivatives, High-Purity Solvents

N-Ethyl-2-Pyrrolidone(NEP)

N-Ethyl-2-Pyrrolidone, commonly referred to as NEP, is a highly versatile, dipolar aprotic solvent characterized by its colorless to slightly yellowish liquid appearance and a faint, characteristic amine-like odor. As a structural analog of N-Methyl-2-Pyrrolidone, NEP serves as a critical substitute in various industrial processes due to its favorable toxicological profile and exceptional solvency power. It possesses a high boiling point, low volatility, and is completely miscible with water and most organic solvents, including alcohols, ethers, and ketones. This chemical is produced through the catalytic reaction of gamma-butyrolactone with ethylamine under controlled high-pressure conditions. Chemically, NEP exhibits significant stability under neutral conditions but can undergo hydrolysis under extreme pH levels. Its unique combination of high polarity and low viscosity makes it an ideal medium for complex chemical reactions, extraction processes, and cleaning applications within the electronics, pharmaceutical, and agrochemical sectors, providing enhanced performance while maintaining rigorous safety and global environmental standards.

Attributes

Key Features and Benefits

High solvency power allows for the efficient dissolution of a wide range of polymers, resins, and organic compounds.
Favorable safety profile compared to NMP, making it a preferred alternative in various regulatory environments and industrial safety protocols.
Low volatility and high flash point minimize evaporation losses and enhance operational safety during high-temperature manufacturing processes.
Excellent chemical and thermal stability ensures consistent performance across diverse reaction conditions without significant degradation or byproduct formation.
Total water miscibility facilitates easy dilution and rinsing in cleaning applications, providing versatile handling characteristics in aqueous systems.

Specifications

Technical Highlights

Molecular formula is C6H11NO with a molar mass of 113.16 g/mol, representing a stable heterocyclic lactam structure.
Boiling point is approximately 212 degrees Celsius at atmospheric pressure, indicating low vapor pressure at room temperature for safety.
Flash point is recorded at 91 degrees Celsius (closed cup), classifying it as a combustible liquid with manageable fire risks.
Density is roughly 0.992 g/cm3 at 20 degrees Celsius, ensuring compatibility with standard industrial pumping and storage equipment.
Refractive index typically ranges from 1.465 to 1.468, serving as a key quality control metric for purity verification.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Used extensively in the electronics industry for photoresist stripping and cleaning of silicon wafers and printed circuit boards.
Serves as a vital solvent in the formulation of high-performance coatings, paints, and inks, improving flow and leveling properties.
Acts as a reaction medium and extraction solvent in the synthesis of pharmaceuticals, particularly for complex heterocyclic active ingredients.
Utilized in the agrochemical sector for the formulation of herbicides and pesticides, enhancing the stability and delivery of active components.
Employed in the production of lithium-ion batteries as a solvent for electrode binders, facilitating uniform coating and optimal electrochemical performance.