What is the reason for taking the melting point of a purified compound formed from a reaction?

Taking the melting point of a purified compound is a crucial step in characterizing that compound, particularly when it is known. The melting point serves as a distinctive property that can be compared with literature values to confirm the identity of the compound. A pure compound typically exhibits a sharp and narrow melting point range, while an impure substance often shows a depressed and broadened melting point range due to the presence of different components affecting its crystallization.

By comparing the observed melting point with known data for the compound, one can establish its identity and gain confidence in its purity and structural integrity. This makes melting point determination a vital technique for verification in organic chemistry studies and laboratory practice.