\:v2\ 



TABLE 17. 

 C.C. NHj 3iy A^, formed in 120 minutes in 12 cc. 



Concentra- pH = pH = pH= pH— \ pH = 

 tionureaa i 5.83 6.68 6.81 6.89 ' 7.14 



7.47 



pH = 

 1 83 



Ph = 

 8.10 



Concentra- Ph= Ph— Ph= pH= Ph — 

 tionureaa 5.83 6.68 6.81 6.89 7.14 



Ph= I pH = 

 7.47 ; 7.83 



Ph = 

 8.10 



