106 



WORK OF H. R. KREIDER. 



found that the conductivity of methyl alcohol could be much reduced by treating 

 the alcohol with a little dilute sulphuric acid. The best results were obtained when 

 the alcohol was in contact with the acid not more than twelve hours. The alcohol 

 was then distilled from the acid and boiled with, and distilled from lime at least twice. 

 The results obtained are given in tables 74 and 75. 



Table 74. Conductivities of Sodium Bromide, Lithium Bromide, Potassium Sulphocyanate, and 

 Cobalt Bromide in Methyl Alcohol and Ethyl Alcohol at and 25. 



Sodium 



bromide 



in methyl 



alcohol. 



nv |mp 25 



Sodium 

 bromide 

 in ethyl 

 alcohol. 



M0 C 



M,25 c 



Lithium 



bromide 



in methyl 



alcohol. 



fi v n v 2o c 



Lithium 

 bromide 

 in ethyl 

 alcohol. 



M,0 C 



M,25 c 



Potassium 



sulpho- 

 cyanate in 

 methyl 

 alcohol. 



Cobalt 



bromide 



in methyl 



alcohol. 



Cobalt 

 bromide 

 in ethyl 

 alcohol. 



^0 >,25 c 



M,0l^25 > e o m 8 25 



800 



1,600 



3,200 



6,400 



12,800 



25,600 



51,200 



102,400 



53.0 

 58.2 

 62.3: 

 63.8! 

 64.1 

 64.6' 



77.4 

 83.9 

 88.6 

 91.3 

 92.8 

 93.3 



69.11101.0 



19.9 

 23.1 

 24.0 

 24.6 

 24.9 

 24.6 

 21.0 



33.6 

 36.5 

 38.3 

 39.6 

 40.2 

 40.2 

 37.6 

 32.9 



40.9 

 44.5 



45.6 

 48.2 

 47.8 

 49.5 



57.2 

 64.8 

 68.7 

 69.8 

 73.7 

 74.6 



17.2 

 18.3 

 18.3 

 18.4 

 18.3 

 18.3 

 18.11 



27.8 

 28.9 

 29.3 

 28.9 

 29.4 

 30.1 

 27.8 



70.7 

 75.8 

 72.9 

 73.9 

 72.1 

 86.1 



99.9 

 106.2 

 102.9 

 104.5 

 105.4 

 132.2 



19.0 

 21.6 

 24.9 

 29.1 

 33.1 

 36.8, 

 38.6 



23.6 

 27.5 

 32.4 

 37.0 

 44.2 

 50.6 

 65.9 



57.9 

 61.3 

 62. 2| 87 

 64.7 95 

 66.9106 

 70.1106 



77.3 



82.0 

 4 



1 



96.2124.0 



Table 75. Ratios of Conductivities and Fluidities. 



*W=water; M= methyl alcohol; E=ethyl alcohol. 



Table 74 gives the conductivities of sodium bromide in methyl alcohol at both 

 and 25. At we have complete dissociation probably at 6,400 liters. At 25 

 complete dissociation is not attained until a dilution of 12,800 liters is reached. 



Table 74 gives the conductivities of sodium bromide in ethyl alcohol at and 25. 

 Complete dissociation is reached at both temperatures at a dilution of 12,800 liters. 

 At the volume 102,400 there is a marked decrease in conductivity, probably due to 

 the great solvation at this extremely high dilution. The same fact may be noticed 

 in several other tables where ethyl alcohol is used as a solvent. 



