Densities for two ternary systems, NaNO3 (1) + NaCl (2) + H2O (3) and NaNO3 (1) + KCl (2) + H2O (3), have been measured at (20, 25, and 30) C. The experimental study was carried out for four total ionic strength values, I ) I1 + I2 . (0.1, 1, 2, and 3) mol E kg-1, and for each total ionic strength, the values of the ionic strength fraction of the NaCl or KCl were y2 . 0.2, 0.4, 0.6, and 0.8. The parameters of the Pitzer model were fit to the experimental density values. Also, using this model, we determined the volume of mixing ( centsVM) at constant ionic strength and at 25 C, for the two ternary systems studied in the present work. In general, the values for centsVM are positive, which indicates that the mixed solutes possess an opposite structural form, resulting in an attraction with an increase in volume in every ternary system.
Compounds
#
Formula
Name
1
NNaO3
sodium nitrate
2
ClNa
sodium chloride
3
ClK
potassium chloride
4
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.