International Journal of Thermophysics

, Volume 3, Issue 2, pp 137–155

Experimental determination of the volume change of pure salts and salt mixtures at their melting point

  • J. P. Petitet
  • M. Fraiha
  • R. Tufeu
  • B. Le Neindre
Article

DOI: 10.1007/BF00503636

Cite this article as:
Petitet, J.P., Fraiha, M., Tufeu, R. et al. Int J Thermophys (1982) 3: 137. doi:10.1007/BF00503636

Abstract

Measurements of the melting temperature as a function of pressure for some pure salts (NaNO3, LiOH) and salt mixtures (Na2SO4-NaCl, NaNO2-NaNO3- KNO3, Li2SO4-NaCl, NaCl-MgCl2) are reported. The experiments were performed up to 250 MPa. From the melting curves, the slopes (dP/dT)m0at atmospheric pressure were determined. Finally, using the Clapeyron equation, with the enthalpy of melting taken from the literature, the volume change on melting at atmospheric pressure was determined for each compound.

Key words

Clapeyron equation heat storage high pressure melting curve salts volume change 

Copyright information

© Plenum Publishing Corporation 1982

Authors and Affiliations

  • J. P. Petitet
    • 1
  • M. Fraiha
    • 1
  • R. Tufeu
    • 1
  • B. Le Neindre
    • 1
  1. 1.LIMHP-CNRSUniversité Paris-NordVilletaneuseFrance

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