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Density of molten salt hydrates—experimental data and an empirical correlation
Author(s) -
Sharma S. K.,
Jotshi C. K.,
Singh Amrao
Publication year - 1987
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450650129
Subject(s) - melting point , hydrate , thermodynamics , molten salt , salt (chemistry) , ion , freezing point , materials science , chemistry , mineralogy , organic chemistry , physics
Abstract The density of molten sodium salt hydrates which are suitable for energy storage applications has been determined by using a modified Sprengel pycnometer. The variation of density as a function of temperature shows linear behaviour. An empirical generalised correlation between reduced parameters of density and temperature is reported. This correlation predicts the density of salt hydrate melts of Na, Ca, Zn, Co, Ni, Cr and Fe ions from the density at the melting point, within an accuracy of ± 0.5 percent, for temperatures from the melting point to about 40 K above the melting point.