SUMMARY OF FACTS. 205 



In methyl alcohol they found that lithium bromide increases from 50.21 

 to 83.64, and cobalt chloride from 41.78 to 133.33 for the same increase in 

 dilution. 



In ethyl alcohol lithium bromide increases from 17.22 to 33.36; and cobalt 

 chloride from 7.64 to 33.59, between the N/10 and the N/1600 solutions. 



In acetone lithium bromide increases from 110.82 to 85.90 over the above 

 range in dilution, and cobalt chloride increases from 9.47 in the N/100 solution 

 to 10.45 in the N/1600 solution. 



Jones and Bingham * obtained the following data with lithium nitrate, 

 potassium iodide, and calcium nitrate: Lithium nitrate in water, between 

 the N/10 and N/1600 solutions increases from 83.9 to 102.8 ; potassium iodide 

 in water between the N/200 and N/1600 solutions increases from 136.3 to 

 140.7; calcium nitrate in water between the N/10 and N/1600 solutions 

 increases from 165.5 to 249.8. Here, again, we observe that the ternary 

 electrolytes show a much greater conductivity in aqueous solutions than do 

 the binary electrolytes. 



Lithium nitrate in methyl alcohol, between the N/10 and N/1600 solutions 

 increases from 51.31 to 86.7; potassium iodide in methyl alcohol between 

 the N/200 and N/1600 solutions increases from 91.4 to 103.3; calcium 

 nitrate in methyl alcohol between the N/10 and the N/1600 solutions increases 

 from 17.17 to 35.4; potassium iodide in ethyl alcohol between the N/200 and 

 N/1600 solutions increases from 34.6 to 42.8. 



Calcium nitrate in ethyl alcohol between the N/10 and the N/1600 solu- 

 tions increases from 7.86 to 33.3; lithium nitrate in acetone under the same 

 conditions increases from 10.87 to 59.8; potassium iodide in acetone between 

 the N/200 and the N/1600 solutions increases from 118.0 to 141.1; and 

 calcium nitrate in acetone between the N/210 and the N/1600 solutions 

 increases from 5.67 to 12.62. 



(6) The temperature coefficients of conductivity increase with increase in 

 dilution, with one exception. This exception is copper chloride in methyl 

 alcohol. The increase is not regular, but it is quite decided when the differ- 

 ence in the values for the N/10 and the N/1600 solutions is considered. 



(7) The temperature coefficients of conductivity are always a maximum 

 in the mixtures of water with the alcohols or acetone, and are never a 

 maximum in the mixtures of the alcohols with each other or with acetone. 



The individual facts upon which the above statement is based are as fol- 

 lows: Copper chloride in 25 per cent methyl alcohol and water; in 50 per 

 cent ethyl alcohol and water; potassium sulphocyanate in 25 per cent and 

 50 per cent mixtures of methyl alcohol and water, and in 50 per cent acetone 

 and water, and in 50 per cent ethyl alcohol and water. 



The data obtained by Jones and McMaster 2 show that this is also true for 

 1 Amer. Chem. Journ., 34, 497-534 (1905). 2 Loc. cit. 



