Calculations of Individual Ionic Activity Coefficients of Chloride Salt in Aqueous Solutions

2021 ◽  
pp. 118123
Author(s):  
Li Sun
Keyword(s):  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Chloride Salt ◽  
Ionic Activity

Activity coefficients of potassium perrhenate in aqueous mixtures with KCl, NaCl and KI at 298.15 K

1975 ◽  
Vol 28 (3) ◽  
pp. 665 ◽  
Author(s):  
C Chan
Keyword(s):  
Activity Coefficient ◽  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Aqueous Mixtures ◽  
Ionic Activity ◽  
Activity Product ◽  
Dilute Aqueous Solutions ◽  
Mean Ionic Activity Coefficients

The solubilities of potassium perrhenate in aqueous NaCl, KCl and KI solutions are reported. The solubility activity product for this electrolyte was determined using extrapolation functions involving three different mean ionic activity coefficient expressions. Mean ionic activity coefficients have been computed for potassium perrhenate in dilute aqueous solutions and there is no justification for considering ion association1,2 in these solutions.

A spectrophotometric study of ionic association in aqueous solutions

1958 ◽  
Vol 244 (1236) ◽  
pp. 124-139 ◽  
Keyword(s):  
Aqueous Solutions ◽  
Activity Coefficients ◽  
Dissociation Constants ◽  
Spectrophotometric Study ◽  
Potassium Ferricyanide ◽  
Potassium Ferrocyanide ◽  
Lanthanum Chloride ◽  
Ionic Association ◽  
Extinction Coefficients ◽  
Ionic Activity

Measurements are reported of the extinction coefficients of aqueous solutions of potassium ferrocyanide, potassium ferricyanide, thallous perchlorate, thallous sulphate, thallous ferrocyanide and mixtures of lanthanum chloride and potassium ferrocyanide. Observed deviations from Beer’s law in the last three cases have been interpreted in terms of the theory of incomplete dissociation, paying particular attention to assumptions about ionic activity coefficients. The formulae of the associated ions in ferrocyanide solutions have been determined by the method of continuous variations and thermodynamic dissociation constants have been obtained at 25, 35 and 50° C for the TlFe(CN) 3- 6 ion and at 25° C for the LaFe(CN) - 6 ion. These dissociation constants are discussed in terms of Bjerrum’s theory of ionic association.

Sign in / Sign up

Export Citation Format

Share Document