A melting point apparatus is a device used to determine the melting point of a solid substance. It typically consists of a heating mechanism, a sample holder, and a thermometer to measure the temperature of the sample. The sample is placed in the sample holder and the temperature is gradually increased until the substance changes from a solid to a liquid state.

The temperature at which this occurs is recorded as the melting point. This information is useful in determining the purity and identity of a substance, as well as in studying its physical and chemical properties. The apparatus is commonly used in the fields of chemistry, materials science, and pharmaceuticals.