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N-Ethyl pyridine bromide salt belongs to the quaternary ammonium group of compounds, which is usually represented by the chemical formula C7H10BrN and consists of a pyridine ring bonded to an ethyl substituent, with the bromide ion (Br-) acting as the paired anion. As an ionic liquid, it appears as a liquid at room temperature or slightly higher, has a low vapor pressure and high thermal stability. It has good polar solvent solubility and is readily soluble in water, alcohols and certain polar organic solvents, exhibiting excellent electrochemical properties and electrical conductivity.
Compared with traditional solvents, N-ethylpyridine bromide salt as an ionic liquid is almost non-volatile, reducing the impact on the environment and becoming an important part of “green chemistry”. With a melting point of 122°C, it is stable over a wide range of temperatures and can be used as a catalyst, especially for esterification and hydrogenation reactions in organic synthesis, and N-ethylpyridinium bromide is often used in the extraction of organic substances and metal ions.
