International Journal of Thermophysics

, Volume 9, Issue 6, pp 1071–1080

Measurement of thermophysical properties of molten salts: Mixtures of alkaline carbonate salts


  • N. Araki
    • Faculty of EngineeringShizuoka University
  • M. Matsuura
    • Faculty of EngineeringShizuoka University
  • A. Makino
    • Faculty of EngineeringShizuoka University
  • T. Hirata
    • IHI Co. Ltd.
  • Y. Kato
    • Japan Atomic Energy Research Institute

DOI: 10.1007/BF01133274

Cite this article as:
Araki, N., Matsuura, M., Makino, A. et al. Int J Thermophys (1988) 9: 1071. doi:10.1007/BF01133274


The purpose of this study is to develop measuring methods for the thermal diffusivity, the specific heat capacity, and the density of molten salts, as well as to measure these properties of mixtures of alkaline carbonate salts. The thermal diffusivity is measured by the stepwise heating method. The sample salt is poured into a thin container, and as a result, a three-layered cell is formed. The thermal diffusivity is obtained from the ratio of temperature rises at different times measured at the rear surface of the cell when the front surface is heated by the stepwise energy from an iodine lamp. The specific heat capacity is measured using an adiabatic scanning calorimeter. The density is measured by Archimedes' principle. Thermal conductivity is determined from the above properties. Measured samples are Li2CO3-K2CO3 (42.7–57.3, 50.0-50.0, and 62.0-38.0 mol%).

Key words

alkaline carbonate saltsdensityhigh temperaturesmolten saltsspecific heat capacitystepwise heating methodthermal conductivitythermal diffusivity
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© Plenum Publishing Corporation 1988