Heat of solution of potassium chloride and the solubility of benzene in aqueous solutions of copolymers of vinyl alcohol and vinyl acetate

1973 ◽  
Vol 14 (3) ◽  
pp. 503-504
Author(s):  
E. M. Shakova ◽  
S. I. Meerson
Keyword(s):  
Aqueous Solutions ◽  
Potassium Chloride ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Heat Of Solution

FREEZING POINTS AND HEAT CAPACITIES OF AQUEOUS SOLUTIONS OF POTASSIUM CHLORIDE

1930 ◽  
Vol 2 (3) ◽  
pp. 218-229 ◽  
Author(s):  
W. H. Barnes ◽  
O. Maass
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Potassium Chloride ◽  
Heat Capacities ◽  
Constant Factor ◽  
Heat Of Solution ◽  
Phase Rule ◽  
Freezing Points ◽  
Cooling Conditions ◽  
Eutectic Concentration

Freezing points for the system KCl–H2O are determined to 0.1° and 0.1% concentration over a range of concentrations including the eutectic. The solubility of potassium chloride in water at 25.22 °C. is measured. The heat capacities of a few rapidly and slowly frozen aqueous solutions of potassium chloride are investigated. The heat capacities of an approximately eutectic aqueous solution of potassium chloride are studied.Supercooling of aqueous solutions of potassium chloride is observed to be a constant factor under fixed cooling conditions, and its magnitude depends on the concentration of the solution. Aqueous solutions of potassium chloride, cooled rapidly to temperatures below the eutectic, are found to have approximately the same heat capacity values as those cooled slowly to the same temperatures. The heat of solution of potassium chloride at −10.7 °C. to form the eutectic concentration is calculated, and the relation between the phase rule diagram and heat capacities is discussed.

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