Аннотация
The ion interaction approach developed by Fitter allows the prediction
of various thermodynamic characteristics of multiple-solute electrolyte
solutions, if the respective parameters for each type of single-solute
electrolyte solution are known. The present paper discusses the Fitter
approach to the calculations of the volumetric properties of single-solute
electrolyte solutions. The databases for the densities and the apparent
molal volumes versus concentrations were created at 298.15 degrees
K using essentially all published relevant data for each single-solute
electrolyte solution. Poor experimental data were discarded by a
statistical treatment applied to these databases. Proper treatment
of all good quality density and apparent molal volume data, in a
wide range of concentrations from infinite dilution through saturation,
allowed us to evaluate the volumetric ion interaction parameters
(<(V)over bar (0)(MX)>, beta(MX)((0)V), beta(MX)((1)V), beta(MX)((2)V),
and C-MX(V)) at 298.15 degrees K for 102 electrolytes. Strong linear
relationships between the beta(MX)((1)V), beta(MX)((2)V), or C-MX(V),
and beta(MX)((0)V) volumetric ion interaction parameters were observed
for all analyzed solutes with slopes depending on the solute valency
types. (C) 1996 American Institute of Physics and American Chemical
Society.
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