CONDUCTION PROCESS IN ELECTROLYTES 

 TABLE I. 



25 



CATION TRANSFERENCE NUMBERS (X 10 3 ) OF VARIOUS ELECTROLYTES IN 

 WATER AT OR NEAR 18. 



Electrolyte Temp. 



Concentration 

 0.0050.01 0.02 0.05 0.1 0.2 0.3 0.5 



1.0 



transference numbers are functions of the concentration. This concen- 

 tration effect is much more pronounced in concentrated than in dilute 

 solutions, where these numbers appear to approach limiting values. If 

 the underlying assumptions are correct and if complex ions are not 

 present in solutions of these electrolytes, then the change in the trans- 

 ference numbers at higher concentrations indicates a change in the rela- 

 tive speed of these ions. In general, at higher concentrations the trans- 

 ference number of the more slowly moving ion decreases. A portion of 

 the effect at higher concentrations may be due to a transfer of water 

 with the ions. But this is not sufficient to account for the entire change 

 in the transference numbers. In most cases, the change in the transfer- 

 ence numbers does not become pronounced until concentrations are 

 reached where the viscosity of the solution is materially affected by the 

 electrolyte. Since the motion of a particle through a viscous medium 



