Conductivity of Sodium Chlorate-Sodium Chloride-Water System at High Temperature

1970 ◽  
Vol 117 (2) ◽  
pp. 279 ◽  
Author(s):  
R. A. Crawford ◽  
W. B. Darlingron ◽  
L. B. Kliever
Keyword(s):  
High Temperature ◽  
Sodium Chloride ◽  
Water System ◽  
Sodium Chlorate ◽  
Chloride Water

scholarly journals Phase separation in an aqueous quaternary system

1970 ◽  
Vol 117 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Elizabeth Edmond ◽  
A. G. Ogston
Keyword(s):  
Phase Separation ◽  
Polyethylene Glycol ◽  
Sodium Chloride ◽  
Critical Point ◽  
Osmotic Coefficient ◽  
Water System ◽  
Dextran Sulphate ◽  
Interaction Coefficients ◽  
Chloride Water ◽  
Thermodynamic Equations

(1) We have measured the incompatible phase separation that occurs in a polyethylene glycol–sodium dextran sulphate–sodium chloride–water system and have determined a critical point. (2) We have measured the activity coefficients of sodium chloride in critical-point concentrations of polyethylene glycol and sodium dextran sulphate respectively, and the osmotic coefficient of sodium dextran sulphate at the critical-point concentration. (3) With use of the relevant thermodynamic equations for a quaternary ionic system, we have determined the interaction coefficients between polyethylene glycol and dextran sulphate and between polyethylene glycol and sodium chloride. The former could be due mainly to volume exclusion, but the latter is too large to be explained on that basis.

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