FLUIDITY. 



201 



the temperature coefficients of conductivity of both copper chloride and 

 potassium sulphocyanate. 



Table 87 shows that the temperature coefficients of fluidity of potassium 

 sulphoc}^anate, in mixtures of ethyl alcohol and water, increase in all cases 

 with increase in dilution. The same is true of the temperature coefficients of 

 conductivity of both copper chloride and potassium sulphocyanate. The 

 temperature coefficients of fluidity are largest in the 50 per cent mixtures, 



Curve I, fluidities of N/10 

 potassium sulphoeyanate in mix- 

 tures of acetone and ethyl alcohol 

 at 0. 



Curve II, fluidities of mixtures 

 of acetone and ethyl alcohol at 0. 



Curve III, fluidities of N/10 

 potassium sulphocyanate in the 

 above mixtures at 25. 



Curve IV, fluidities of the above 

 solvent mixtures at 25. 



Percentage of Acetone 

 FIG. 102. 



1000 



and the same is true of the temperature coefficients of conductivity of both the 

 above-mentioned salts. 



Table 87 shows that the temperature coefficients of fluidity of potassium 

 sulphocyanate, in mixtures of acetone and water, increase with increasing 

 dilution, with the exception of the solutions in the pure acetone. The maxi- 

 mum values for these temperature coefficients are found in the 25 per cent 

 and 50 per cent mixtures. The temperature coefficients of conductivity of 

 potassium sulphocyanate, in these mixtures, increase with increase in dilu- 

 tion, the maximum values being in the 50 per cent mixture. 



Table 87 shows that the temperature coefficients of fluidity of potassium 

 sulphocyanate, in mixtures of acetone and methyl alcohol, decrease with 



