THE ACTION OF NEUTRAL SALTS 



95 



Fig. 29 that the molecular concentrations of NaCl, CaCU, and 

 LaCl 3 , which depress the viscosity to the same level are approxi- 

 mately in the ratio of 3:2:1. Thus, when the effect of NaCl and 



2.8 

 2.7 

 6 

 25 



2.4 

 2.3 

 2 

 2.1 

 20 

 1.9 

 1.8 

 1.7 

 1.6 

 1.5 

 L4 

 1.3 

 1.2 

 1.1 

 1.0 



:\ 



\ 





Nv 



^r4 



SI92 4096 



512 256 128 64 32 16 8 



| IN 



Concentration of Cl 



FIG. 30. Showing that NaCl and CaCh have the same depressing'effect on the 

 viscosity of gelatin chloride of pH = 3.0 when the concentration of Cl ions is 

 the same. 



CaCl2 is plotted over the same concentration of the Cl ions the 

 curves for the salts become nearly identical (Fig. 30), and the same 

 would be practically true for the LaCl 3 curve. From this it follows 



