140 CONDUCTIVITY AND VISCOSITY OF CERTAIN SALTS. 



SUMMARY. 



1. The conductivities of the ternary solvents make it probable that 

 water and acetone act as dissociating agents on glycerol. 



2. The decrease in dissociation of one associated liquid by another is 

 much larger in a ternary than in a binary mixture, thus producing 

 decreased values in conductivity and fluidity. 



3. A consideration of the hypotheses of Dutoit and Aston and of 

 Thompson-Nernst, together with the fluidities of glycerol, acetone, and 

 water, explain the differences between the conductivity and fluidity 

 curves in these ternary solvents. 



4. Temperature coefficients of fluidity are larger than for conduc- 

 tivity, as in binary solvents. The formation of solvates is a possible 

 explanation of the difference between these coefficients. 



5. The minimum point w^hich occurs in some of the conductivity 

 curves is explained by considering the fluidity of the solution. 



6. A possible explanation of the fluidity changes which produce 

 minima in the conductivity and fluidity curves is the polymerization 

 of the salts by the acetone. 



7. The conductivity and fluidity values of the solvents containing 

 the largest percentage of glycerol are farthest below the values calcu- 

 lated by averages. 



8. The temperature coefficients of conductivity are about the same 

 as those calculated from averages. 



9. This investigation emphasizes the fact already known that 

 fluidity probably outweighs all the other factors affecting conductivity. 



10. The conditions governing viscosity in a pure homogeneous liquid 

 are discussed from a physical point of view. 



