CONCENTRATION DEPENDENCE OF NaCl IN A WIDE RANGE OF TEMPERATURES AND PRESSURES
V. N. Afanas’ev, A. N. Ustinov
G. A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo
vna@isc-ras.ru
Keywords: conventional compressibility of hydrated complexes, conventional compressibility of the free solvent, hydration
Abstract
We use our own and literature data on density, ultrasound propagation velocity, and isobaric heat capacity to study the concentration, temperature, and pressure dependences of solvation numbers in aqueous NaCl solutions. We show that, in the parameter range: m = 0-6.0 mol×kg –1, p = 1-1000 bar, and T = 283.15-323.15 K, the solvation numbers decrease with increasing concentration, pressure, and temperature.
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