Properties of organic-water mixtures. X. Activity coefficients of sodium chloride at saturation in water mixtures of polyglycols and polyglycol ethers at 50.deg.

1969 ◽  
Vol 73 (10) ◽  
pp. 3417-3420 ◽  
Author(s):  
Willis H. Baldwin ◽  
Richard J. Raridon ◽  
Kurt A. Kraus
Keyword(s):  
Sodium Chloride ◽  
Activity Coefficients

A simplified form of Stokes–Robinson equation

1976 ◽  
Vol 54 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Chai-Fu Pan
Keyword(s):  
Sodium Chloride ◽  
Hydrogen Chloride ◽  
Activity Coefficients ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Solvent Interactions ◽  
Interionic Interactions ◽  
Two Parameter ◽  
Robinson Equation ◽  
Existing Data

In non-associated dilute aqueous electrolyte solutions, the deviation from ideality is principally attributed to the interionic interactions and hydration of ions. Stokes and Robinson combined Bjerrum's thermodynamic treatment of ion–solvent interactions with Debye–Hückel treatment of interionic interactions to obtain a two-parameter equation. In very dilute regions, the Stokes and Robinson's equation reduces to a much simpler form, i.e.[Formula: see text]Activity coefficients of an electrolyte at lower concentrations, say up to 0.1 m, can be calculated from the equation provided suitable values of &([a-z]+); and h are available. Solutions of hydrogen chloride and sodium chloride were chosen as examples. The results agree with the existing data very satisfactorily.

Activity coefficients in the ternary system: water + sucrose + sodium chloride

1970 ◽  
Vol 2 (5) ◽  
pp. 745-750 ◽  
Author(s):  
R.A. Robinson ◽  
R.H. Stokes ◽  
K.N. Marsh
Keyword(s):  
Sodium Chloride ◽  
Ternary System ◽  
Activity Coefficients ◽  
System Water
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