BY CHIPMAN AND MCINTOSH 



193 



Dilution. 



ConduQtivityx (O^ 



The conductivity curves for the amines in liquid 

 hydrogen sulphide exhibit a form which is just opposite 

 to that of the curves for electrolytes in aqueous solutions, that 

 is, the conductivity increases with the concentration. Similar 

 results were obtained for the organic substances which were 

 examined by Steele, Mcintosh and Archibald', and they show 

 that this indicates the formation of a complex compound be- 

 tween the solute and the solvent. All the organic substances 

 which have been found to possess conducting power when in 

 solution in hydrogen sulphide are basic, and it would not be 

 surprising to find evidence of compound formation. The sub- 

 stituted amines which have been investigated therefore behave 



1. Loc. cit. 



