Determination of Pitzer Parameters for 1-1 Nitrate and 1-2 Sulfate Solutions from Freezing Point Data

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Lappeenranta University of Technology

Kuvaus

Freezing point depression (FDP) modeling was performed for selected aqueous nitrate and sulfate salt solutions to evaluate Pitzer ion interaction parameter values at 273.15K. 1-1 and 1-2 electrolyte solutions of NaNO3, KNO3, NH4NO3, Na2SO4, K2SO4, and (NH4)2SO4 were studied. New Pitzer parameter values of β0, β1, and Cφ{symbol} were obtained for the studied electrolyte solutions. FDP modeling was also used to determine temperature derivatives of interaction parameters for the Pitzer model for selected salt solutions. Osmotic and activity coefficients using the new parameter values are also presented.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut1340-1346
Sivumäärä7
JulkaisuChemical Engineering and Technology
Vuosikerta37
Numero8
TilaJulkaistu - 2014
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 10771277