The Coxductivity of Eosaxilixe Hydkochloeide ix Watek 

 AXD Ceetaix OpvGaxic Soeyexts. — By Haeoed S. Dayis, 

 B. A.. Dalliousie College." 



Read March 11th, 1912. 



Within the last fifteeii Years,- the knowledge of the con- 

 dnctiYitY of electrolYtes in solYents, other than "^ater, has been 

 greatlY increased. An historical suniniarY of the -^York done 

 in this field up to 1903 is giYen by Walden,^ 



When a solute dissolYes in a soh'ent to form a conducting 

 solution, the magnitude of the conductiYity under giYen con- 

 ditions of temperature and concentration depends upon (1) the 

 solute, and (2) the solYent. But while iuYestigation h s 

 hitherto extended to a wide range of solYents, only a Yery 

 limited number of solutes haYe been studied. TTalden. for 

 example, who has been the principal worker on this subject, 

 confines his attention to tetra methyl ammonium iodide and 

 one or two of its homologues. As regards these salts, he has 

 shown^ that the dissociation decreases as we adYance in 

 homologous series, that is, is gTeater for tetra methyl ammonium 

 iodide than for the corresponding ethyl compound. 



He has further shoYm emjiirical relations 



( 1 ) Between the dissociating power of a solYent and 

 its dielectric constant. 



(2) Between the temperature coefiicient of conductiYity 



of a solYent and the conductiYity at infinite 



dilution. 

 rS ) Between the dielectric constant of the solYents and 



the molecular dilution at which they show equal 



dissociation of the same salt. 



*CoiiLrilintion> from the Science Laboratories of Da]hon«ie University— [Chemistry 

 Printed in ad raiee in th? pre>e:it part by parmission of the Council of the Institute. 



1. Walden. P. : Zeit^chr. f. phys. Chem., 46. 103, (1903). 

 •2- Walden, P. : Zeilschr. f phys. Chem , 54, 129, d'Oe). 



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