1912] 



Lipman-Sliarp : Phenoldisulplionic Acid Method 



25 



Uniform quantities 

 KNO — varying 

 amounts NaCl 



Varying quantities 

 KNO„-uniform 

 amounts NaCl 



Varying quantities of 

 both KNO and NaCl 



3 



Uniform amounts KNO 

 small amounts NaCl 



Color blanks 

 on both salts 



TABLE I 

 Effects of NaCl 



NaCl added 



mgs. 



.25 



.50 

 1.00 

 2.50 



1.00 

 1.00 

 1.00 

 1.00 

 1.00 

 1.00 



.50 

 1.00 

 1..50 

 2.00 

 2.50 



.01 

 .05 

 .10 



.00 

 2.50 



N. added as 

 nitrate mgs. 



.050 



.050 



.050 



.050 



.050 



.100 



.250 



.500 

 1.000 

 2.500 



.050 



.100 



.2.50 



..500 

 1.000 

 2.500 



.050 

 .0.50 

 .050 



.050 

 .000 



N. found as 

 nitrate mgs. 



.045 



.041 



.035 



.026 



.038 

 .070 

 .215 

 .460 

 .940 

 2.300 



.046 

 .078 

 .230 

 .460 

 .900 

 2.300 



.051 

 .051 

 .049 



.050 

 .000 



TABLE II 



Effects of Na^SOi 



Amounts of nitrate 

 uniform and sulfate 

 varying 



Amounts of sulfate 

 uniform and nitrate 

 varying 



Amounts of both salts 

 varying 



