128 DK. B. D. STEELE, DK. D. McINTOSH AND DR. E. H. ARCHIBALD 



TABLE IV. Solvent : Sulphuretted Hydrogen. 



V. 



/* 



V. 



TRIETHYLAMMONITJM CHLORIDE. 



71-4 

 12-8 

 8-33 



0-12 

 0-21 

 0-33 



4-00 

 3-13 



*2-50 



0-87 

 1-17 

 1-58 



Temperature coefficient between - 80 and - 75 = 0'88 per cent. 



-80 -70 = 0-90 

 -80 , -65 = 0-85 



NICOTINE. 



66-7 

 14-3 

 6-67 

 4-00 



9-09 

 1-18 

 0-90 



0-03 

 0-04 

 0-06 

 0-16 



0-02 

 0-29 

 0-39 



2-27 

 1-92 

 1-03 



0-38 

 0-50 

 0-76 



PlPERIDINE. 



0-75 



0-64 



*0'55 



0-46 

 0-48 

 0'50 



Temperature coefficient between - 80 and - 66 = 1 '82 per cent. 



-80 and -63 = 1-84 



TETRAMETHYLAMMONIUM CHLORIDE. 



34-5 

 11-0 

 4-35 



1-71 

 3-41 



3-85 



3-33 

 2-93 



4-02 

 3-85 



Temperature coefficient between - 70 and - 64 '7 = 0'95 per cent. 



-70 -62-6 J - 1-07 

 -70 -60-8= 1-09 



The foregoing results are shown graphically in the figs. 4 to 7, in which the 

 molecular conductivities are plotted against the dilutions. It will be seen that in 

 every case JJL decreases enormously with dilution, a variation which is exactly opposite 

 to that which might be expected from analogy with aqueous solutions. These results 

 indicate that, if conduction is due to ionisation, the degree of dissociation decreases 

 with dilution, a result which is in opposition to the law of mass action. 



This subject will be discussed fully in Part IV. 



