THE ACTIVITY COEFFICIENTS OF SODIUM AND POTASSIUM HYDROXIDES IN THEIR CORRESPONDING CHLORIDE SOLUTIONS AT HIGH CONSTANT TOTAL MOLALITY

1928 ◽  
Vol 50 (10) ◽  
pp. 2633-2637 ◽  
Author(s):  
Herbert S. Harned ◽  
John McArthur Harris
Keyword(s):  
Activity Coefficients ◽  
Chloride Solutions ◽  
Sodium And Potassium

Osmotic and activity coefficients in dilute potassium chloride solutions at 25 °C

1980 ◽  
Vol 58 (13) ◽  
pp. 1386-1387 ◽  
Author(s):  
Chai-Fu Pan
Keyword(s):  
Vapor Pressure ◽  
Potassium Chloride ◽  
Activity Coefficients ◽  
Size Parameter ◽  
Pressure Data ◽  
Vapor Pressure Data ◽  
Chloride Solutions ◽  
Ion Size ◽  
Robinson Equation ◽  
Existing Data

Osmotic and activity coefficients of dilute aqueous potassium chloride solutions are calculated from the simplified forms of the Stokes and Robinson equation. The hydration parameters in these equations are obtained from the vapor pressure data measured at higher concentration regions and the ion-size parameter is chosen as the sum of the crystallographic radii of the cation and anion of the electrolyte. The results are very satisfactory in comparison with existing data.

scholarly journals Thermodynamic Activity Quantities in Aqueous Sodium and Potassium Chloride Solutions at 298.15 K up to a Molality of 2.0 mol kg^-1.

1993 ◽  
Vol 47 ◽  
pp. 768-776 ◽  
Author(s):  
Jaakko Ilmari Partanen ◽  
Pentti Olavi Minkkinen ◽  
Siw B. Fredriksen ◽  
Johannes Dale ◽  
Björn O. Roos ◽  
...  
Keyword(s):  
Potassium Chloride ◽  
Thermodynamic Activity ◽  
Chloride Solutions ◽  
Aqueous Sodium ◽  
Sodium And Potassium

Na and K activity coefficients in bile and bile salts determined by glass electrodes

1964 ◽  
Vol 206 (5) ◽  
pp. 1111-1117 ◽  
Author(s):  
Edward W. Moore ◽  
John M. Dietschy
Keyword(s):  
Bile Salt ◽  
Activity Coefficients ◽  
Freezing Point ◽  
Osmotic Coefficients ◽  
Ionic Species ◽  
Salt Solutions ◽  
Glass Electrodes ◽  
Sodium And Potassium

Mathematical formulations for transmembrane potential differences are expressed in terms of ionic activities rather than ionic concentrations, and require knowledge of the activity coefficients of a given ionic species in mixed solutions. Cation-selective glass electrodes have been used to determine sodium and potassium activity coefficients in pure bile salt solutions and in native bile, relative to standard NaCl or KCl solutions. Comparison was made with osmotic coefficients determined by freezing-point depression. Both sodium and potassium activity coefficients in bile salt solutions and in bile were lower than those for NaCl or KCl solutions at corresponding concentrations, with potassium coefficients being lower than those for sodium. These derived activity coefficients have been used experimentally in in vivo and in vitro gall bladder preparations with close agreement between observed potentials and those predicted by the Hodgkin-Katz equation.

Sign in / Sign up

Export Citation Format

Share Document