POTASSIUM IODIDE. 



89 



results in an inflection-point in most of the curves. It should be especially 

 noticed that the curves diverge from each other rapidly between the 75 per 

 cent mixture and pure acetone. This seems to indicate that the dissociation 

 is greatly increased by the addition of small amounts of water. 



POTASSIUM IODIDE. 



The salt gave no test for the presence of an iodate, and the flame test showed 

 no appreciable impurity. The salt was dried at 100 to 110 and kept in a des- 

 iccator. The salt dissolved in acetone, giving only a very slight coloration. 



100 



90 



80 

 70 

 60 

 50 



ft 

 a 



3 40 

 o 



30 



10- 



35^ 50$ .75# 



Percentage of Acetone 



FIG. 25. CONDUCTIVITY OF LITHIUM NITRATE IN MIXTURES 

 OF ACETONE AND ETHYL ALCOHOL AT 25. 



.100/5 



Percentage of Acetone 



FIG. 26. CONDUCTIVITY OF LITHIUM NITRATE IN MIXTURES 

 OF ACETONE AND WATER AT 0. 



