How do you recover pyridine from pyridinium hydrochloride?

To recover pyridine from pyridinium hydrochloride, you can perform a base-mediated deprotonation. Typically, adding a strong base such as sodium hydroxide or potassium carbonate to the pyridinium hydrochloride will convert it back to pyridine and generate water and the corresponding salt. The resulting pyridine can then be extracted using an organic solvent, such as diethyl ether, and separated through distillation or other purification methods.