A review of the experimentally determined values of the velocity of sound c in molten pure liquid metals and metalloids has been carried out. Based on the available data for each element, recommended velocity-temperature relationships have been suggested. A range of thermophysical properties has been derived from these values. Theoretical models for the velocity of sound and its temperature dependence have also been considered. Sound velocities have also been estimated via the inter-relationship of velocity to other thermophysical properties.

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