86 



CONDUCTIVITY AND VISCOSITY IN MIXED SOLVENTS. 



TABLE 53. Comparison of the conductivities of lithium nitrate. Continued. 



Table 53 (figs. 22 and 23) shows that lithium nitrate, in mixtures of 

 methyl alcohol and acetone, gives a pronounced maximum in conductivity. 



^ 50$ 75j* 



^Percentage of Acetone 



1000 



FIG. 22. CONDUCTIVITY OF LITHIUM NITRATE IN MIXTURES 

 OF ACETONE AND METHYL ALCOHOL AT 0. 



At high concentrations the maximum is rather small. As the dilution is in- 

 creased the maximum appears in the 75 per cent mixture and even beyond. 

 It should also be noticed that, in the dilute solutions, the rise in conductivity 

 is directly proportional to the amount of acetone, up to the 75 per cent 

 mixture. The maximum is increased by rise in temperature. 



The points will be made clear by a study of the figures. In all cases the 

 curves represent the molecular conductivities at the successive dilutions. 



