& < c=r : (b.//r/rr_c) b < c= Introduction
< , Ethylpyrrolidone is a colorless and transparent liquid, boiling point ℃ (.), relative density./c, Refractive index (°C). It is a highly polar organic solvent. It has high chemical stability, weak alkalinity, excellent solubility, low vapor pressure and low dielectric constant. It does not form hydrogen bonds and is a polar aprotic solvent. It can replace other solvents with poor stability, high vapor pressure and high toxicity that can easily penetrate human skin. It is called a non-toxic supersolvent.
< , Chinese name: ethylpyrrolidone
< , < c= Song Dynasty ethylpyrrolidone English name: rr
< , C number:
< , Molecular formula: b>
b>
< , Molecular weight: .
< , Purity: .%
< c=r : (b.//r/rr_c) b < c= Physical parameters
< , Density:/(&C)(.)
< , Boiling point:&C(.)
< , Flash point:&C
< , Refractive index (/):.(.)
< , Quality specifications:
< , Purity:&.%
< , Moisture content:&.%
< c=r : (b.//r/rr_c) b < c= Synthesis method
< , The methods for synthesizing ethylpyrrolidone include pyrrolidone method and &butyrolactone method. The pyrrolidone method requires halogenated alkane to participate in the reaction and produce the corresponding halide. At the same time, the material selection of the reactor for the halide is also relatively high. &Butyrolactone method, alkyl pyrrolidone is prepared from the condensation of primary amine and &butyrolactone. The yield of this method is relatively high, but the process conditions are more demanding.
< c=r : (b.//r/rr_c) b < c= Instructions for use
< , it can be used as a high-efficiency selective solvent, catalyst and cationic surfactant, and can also be used as Basic raw materials to produce pharmaceutical intermediates. It can be used to refine oil products and produce gunpowder, medicine, dyes, pesticides, daily chemicals, coatings and heat-resistant resins.
N-Ethylpyrrolidone