144 



WORK OF M. R. SCHMIDT. 



The association appears in all three solutions, and since most other salts are 

 dissociated 20 to 30 per cent in ethyl alcohol at these concentrations, we may con- 

 sider the low conductivity of cobalt chloride in this case to be due to this cause. The 

 same thing is sho.vn in methyl alcohol solutions. The value of }i v 25 for lithium bro- 

 mide in tenth-normal solution is 50.0, against a corresponding value of 41.9 for 

 cobalt chloride. The difference is not so striking here, probably because methyl 

 alcohol is a stronger dissociant than ethyl alcohol. 



Table 107 .Conductivity of Cobalt Chloride in Glycerol at 25, 85, and 45. 



Table 103. Conductivities of Cobalt Chloride in Various Solvents at 25 and 35 



V 



Water. 



\H 



25 c 



M, 



35 c 



Temp, 

 coef. 



Mixture of 25 per 



cent glycerol and 



water. 



Mixture of 50 per 



cent glycerol and 



water. 



v-t 



25 



M 



35 



Temp, 

 coef. 



fi 25 ifii 35 



Temp, 

 coef. 



Mixture of 75 per 



cent glycerol and 



water. 



Temp, 

 coef. 



0.0212 79.9 

 0.0212 92.6 

 0.0205 97.6 

 0.0207101.7 

 0.0217105.3 

 0.0222108.5 

 0.0216110.2 



100.1 

 116.4 

 122.9 

 128.4 

 133.1 

 136.6 

 139.7 



0.0252 

 0.0258 

 0.0259 

 0.0262 

 0.0264 

 0.0260 

 0.0267 



28.8 !38.7 

 33.7 45.4 



35.4 

 37.1 

 38.1 



47.6 

 49.7 

 51.2 



39.4 153.3 

 40.4 154.5 



0.0346 

 0.0346 

 0.0346 

 0.0340 

 0.0344 

 0.0352 

 0.0349 



V 



10 

 50 

 100 

 200 

 400 

 800 

 1,600 



Ethyl alcohol. 



4.71 

 9.19 



4.96 

 9.05 



12.18 11.92 

 15.71 15.54 

 19.56 19.64 

 24.07 24.91 

 28.78 30.38 



0.0053 

 -0.0017 

 -0.0021 

 -0.0011 



0.0004 



Mixture of 25 per 



cent glycerol and 



ethyl alcohol. 



5.43 



8.13 



9.30 



10.66 



12.14 



6.70 

 10.10 

 11.52 



0.0034 13.89 

 0.0056 15.55 



0.0233 

 0.0243 

 0.0239 

 13.25: 0.0243 

 15.01; 0.0236 

 17.28 0.0244 

 19.39 0.0246 



Mixture of 50 per 



cent glycerol and 



ethyl alcohol. 



2.63 



3.65 

 4.12 

 4.66 

 5.14 

 5.65 

 5.86 



3.77 

 5.11 

 5.78 

 6.53 

 7.32 

 8.03 

 8.46 



0.0436 

 0.0400 

 0.0402 

 0.0403 

 0.0424 

 0.0423 

 0.0443 



0.0542 

 0.0536 

 0.0536 

 0.0543 

 0.0540 

 0.0538 

 0.0531 



Mixture of 75 per 



cent glycerol and 



ethyl alcohol. 



0.0652 

 0.0638 

 0.0650 

 0.0662 

 0.0666 

 0.0660 

 0.0662 



Methyl alcohol. 



10 

 50 

 100 

 200 

 400 

 800 

 1,600 



41.9 

 64.6 

 75.6 

 88.9 

 102.2 

 118.1 



44.7 

 69.6 

 82.5 

 94.6 

 110.4 

 126.8 



Mixture of 25 per 



cent glycerol and 



methyl alcohol. 



0.0006 

 0.0077 

 0.0098 

 0.0065 

 0.0080 

 0.0078 



19.6 

 27.8 

 32.1 

 36.6 

 40.7 

 44.8 



132.5; 144.6 0.0092! 48.8 



23.0 

 32.6 

 37.7 

 43.1 



48.2 

 53.4 

 57.4 



0.0173 

 0.0172 

 0.0175 

 0.0176 

 0.0185 

 0.0192 

 0.0179 



Mixture of 50 per 



cent glycerol and 



methyl alcohol. 



Mixture of 75 per 



cent glycerol and 



methyl alcohol. 



7.64 10.01 

 10.22 13.64 

 11.64 15.37 

 12.84 17.07 

 14.11 18.77 

 14.99 20.17 

 15.41 20.88 



0.0310 

 0.0334 

 0.0323 

 0.0330 

 0.0330 

 0.0346 

 0.0355 



0.0577 

 0.0569 

 0.0577 

 0.0589 

 0.0600 

 0.0606 

 0.0606 



