Conductivities and Viscosities in Formamid and in Mixed Solvents. 87 



TABLE 49. Tetracthylammonium Iodide Continued. 

 In 25 per cent formamid and 75 per cent ethyl alcohol. 



Molecular 

 Conductivity. 



15 



25 



35 



Temperature Coefficients of 

 Conductivity. 



Per cent. 



15-25 25-35 



Conductivity 

 Units. 



15-25 C 25-35 



4 



10 



50 



100 



200 



400 



800 



1600 



Saturated solution. 



22.28 

 29.21 

 32.43 

 34.08 

 36.04 

 36.72 

 38.13 



27.86 

 35.56 

 39.41 

 41.34 

 43.79 

 44.46 

 46.08 

 56X10- 5 



33.92 

 42.61 

 47.17 

 49.36 

 52.29 

 53.15 

 54.90 



0.0219 

 .0219 

 .0215 

 .0213 

 .0215 

 .0210 

 .0209 



0.0208 

 .0198 

 .0194 

 .0194 

 .0194 

 .0195 

 .0191 



0.482 

 .635 

 .698 

 .726 

 .775 

 .774 

 .795 



0.560 

 .705 

 .776 

 .802 

 .850 

 .869 

 .882 



1.80X10- 5 1.99X10- 5 



Mol. 

 Cone. 



Viscosity and Fluidity. 



Z>25/4 7jl5 



7j25 



1735 



>15 



V>25 



V>35 



Temperature 

 Coefficients (<?). 



15-25 



25-35 



0.10 



.02 



Solv. 



0.8663 



.8580 



0.8554 



0.01828 

 .01795 

 .01761 



0.01474 

 .01438 

 .01412 



0.01257 

 .01197 

 .01174 



54.70 

 55.71 

 56.79 



67.84 

 69.54 

 70.82 



80.84 

 83.54 

 85.18 



0.0240 

 .0248 

 .0247 



0.0192 

 .0168 

 .0203 



TABLE 50. Rubidium Iodide. 



In 75 per cent formamid and 25 per cent ethyl alcohol. 

 Specific conductivity 25. Formamid, 1.6X15~ 5 . Ethyl alcohol, 4.1 X10~ 7 . 



4 



10 



50 



100 



200 



400 



1600 



Molecular 

 Conductivity. 



15 



20.00 

 22.30 

 24.70 

 25.69 

 25.92 

 26.25 

 26.73 

 K=0. 



25 35 



25.71 

 28.45 

 31.45 

 32.78 

 33.04 

 33.48 

 34.12 

 75X10- 5 



31.55 

 35.15 

 38.75 

 40.50 

 40.88 

 41.50 

 42.27 



Temperature Coefficients of 

 Conductivity. 



Per cent. 



15-25 25-35 



0.0285 

 .0275 

 .0273 

 .0275 

 .0275 

 .0275 

 .0276 



0.0227 

 .0235 

 .0232 

 .0235 

 .0237 

 .0239 

 .0239 



0.96 X10- 5 1.21 X10- 5 



Conductivity 



Units. 



15-25 25-35 



0.571 

 .615 

 .675 

 .709 

 .712 

 .723 

 .739 



0.584 

 .670 

 .730 

 .772 

 .784 

 .803 

 .815 



Mol. 

 Cone. 



Viscosity and Fluidity. 



D25/4 



7/15 



Temperature 

 Coefficients (<p) 



15-25 



25-35 



0.10 

 .02 



Solv. 



1.0417 

 1.0300 

 1.0257 



0.03468 

 .03394 

 .03366 



0.02657 

 .02598 

 .02573 



0.02147 

 .02086 

 .02070 



28.84 

 29.46 

 29.71 



37.64 

 38.49 



38.87 



46.58 

 47.94 

 48.31 



0.0297 

 .0306 

 .0308 



0.0245 

 .0246 

 .0243 



