HYDROCHLORIC ACID. 



51 



TABLE 28. Conductivity of hydrochloric acid. 



A consideration of the re- 

 sults, table 28, shows that 

 in certain cases they are 

 irregular and unexpected. 

 In the 50 per cent mixture 

 the conductivity falls from 

 the first dilution, which is 

 analogous to what has been 

 observed for hydrochloric 

 acid in ether and isoamyl 

 alcohol by Cattaneo and 

 Kablukoff, and for sul- 

 phuric acid in acetic acid 

 by Jones the molecular 

 conductivities decreased for 

 decreasing dilution. In the 

 69.75 per cent mixture a 

 maximum is reached at 

 v = 92.42 at both and 

 25. From this point the con- 

 ductivities decrease slightly. 

 However, at 0the mean of 

 the last four conductivities, 

 including the maximum, 

 differs from the maximum 

 value by only 1.5 per cent. 



d 

 a 



6 50 



3 

 o 



o 



3 



30 



30 



10 



Per cent Alcohol by Volume 



FIG. 12. CONDUCTIVITY OF HYDROCHLORIC ACID IN 

 MIXTURES OF METHYL ALCOHOL AND WATER. 



