POTASSIUM SULPHOCYANATE. 



185 



TABLE 83. Comparison of the temperature coefficients of conductivity of potassium 

 sulphocyanate from to 25. Continued. 



Tables 81 and 82 (figs. 86 and 87) show that potassium sulphocyanate gives 

 a decided minimum in conductivity, for all the dilutions studied at 0, in 

 the 50 per cent mixtures of methyl alcohol and water; and that at 25 the 



so 



X 







1> 



~J 



o 



3 



O 



O 



o 



0> 



"o 



a 



co- 



50 

 40 



30- 



20- 



25# 5Q? 75$ lOOji 



Percentage of Methyl Alcohol 



FIG. 86. CONDUCTIVITY OF POTASSIUM SULPHOCYANATE IN 

 MIXTURES OF METHYL ALCOHOL AND WATER AT 0. 



minimum shifts its position in the first two dilutions to the 75 per cent mixture. 

 It is also to be observed that in the mixtures there is but a very slight increase 

 in molecular conductivity in the more dilute solutions, with increase in dilu- 



