394 



Prof. G-. N. Antonoff on Interfacial 



The substance which freezes out from the solution is gene- 

 rally called the dissolvant. The points m and n represent 

 the freezing-point of the two saturated layers. At m the 



h 



F=n 



Fig;. 4. 



-> Concentration.. 

 Fig. 5. 



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72 .\ 





i 



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V 



c. 



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D- 





L™» 













5 



Concentration . 



solution becomes saturated ; further addition of substance B 

 produces a second layer which increases in quantity until 

 point B is reached where only the second layer is present. 

 On further addition of B, the solution again becomes homo- 

 geneous and its freezing-point begins to rise. 



