162 ET.ECrRICAL COXDL'CTIVITY OF BASES. CREIGHTON. 



found the dielectric constant of acetophenone^ to have the small 

 value of 18.1-18.6 at room temperature. It is further to be 

 observed that if our conjecture be correct, namely, that -with 

 equi-molar actophenone solutions the specific conductivity is an 

 approximate measure of the dissociation constant of the solute, 

 then the relative strengths in acetophenone of the bases used 

 above differ somewhat from those in Tvater. Thus conine ^vhich, 

 in water solution, is a stronger base than isoamylamine. for 

 examjDle. is weaker than the latter in acetophenone. On the 

 other hand the relative position of piperdine is the same in 

 either solvent. 



The measurements embodied in this paper were carried 

 out at the Laboratorium fiir electro und physikalische Chemie, 

 der eidgenossischen technischen Hochschule. Ziirich. Switzer- 

 land, in February. 1911. at the suggestion of Professor G. 

 Bredig. 



J. Walden, P. : Zsir-eliv. f. phvs. Cheiii.. 70. 573, 1910 . 



Dalhousie Uiiiversit}-, 



Halifax, Nova Scotia, 



:Mav 3rd, 1912. 



