Physical properties data compilations relevant to energy storage, 2. Molten salts: Data on single and multi-component salt systems

The work provides selected data with value judgments for a set of 49 salt systems of interest as candidate materials for thermal energy storage sub-systems and for electrochemical energy storage systems. The physical properties assessed are melting points; phase diagrams; eutectic compositions; density; surface tension; viscosity; electrical conductivity; diffusion for ions; heat of fusion; heat capacity; volume change on fusion; vapor pressure; thermal conductivity (liquid and solid); and cryoscopic constant. The status of corrosion studies in the form of annotated bibliographic summaries, and salient observations on safety and hazards are also reported. A summarizing series of tables are provided as index to the data-gaps status for this set of candidate materials.