Transcription of Experiment 1 - Melting Points
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Experiment 1 - Melting Points
Experiment 1 - Melting Points Introduction The Melting point of a substance (the temperature at which a substance melts) is a physical property that can be used for its identification. It is a measure of the amount of kinetic energy (heat) that must be supplied to the particles of the substance in order to overcome the intermolecular forces (such as Van der Waals, dipole-dipole, and H-bonding) that confine them to the solid state. The determination of Melting Points is particularly important to organic chemists, since they often work with solid molecular compounds that have low Melting Points (below 300 C) and which can be conveniently measured. Organic compounds are used in this Experiment for the same reasons. Melting Points are also used as an indication of purity.
the DigiMelt to compact the solid down to the closed end of the melting point capillary tube. Drop the tube (closed end down) down a section of glass tubing (see TA) to compact the solid in the bottom or closed end of the tube even more. Place the tube
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