-5 



Logjo load in grammes 



Fig. 4 (A) 



40 



=/ 



/ 



ui 



O 

 Q. 



10 



J I I I I I I 



' I ■ ■ ■ ■ 



O'l 0:2 0-5 1-0 2-0 



MOLARITY 



Fig. 4 (B) 

 14 



5-0 



