238 Intelligence and Miscelltineous Articles. 



Experiment gave 104. 



The amide which is formed, and which the author calls chrysam- 

 mide, is then composed of C''' H^ Ni^ O". 

 According to M. Robiquet, we have — 

 Before the experiment, C" H^ N» 026 = 5603-5 ; 

 After the action of ammonia, C^o H'^ N'" O'" = 5703-5. 

 Then— 



5603-5 : 112-48=100 :x; . 

 a.'=2Aq. 

 And, on the other hand, 



5603-5 : 5703-5 = 100: x; 

 .r=102. 

 It is then clear that C'^ H-* N^ O'^ loses H-0 and gains N^ W', 

 and that the composition of chrysammide, which M. Robiquet calls 

 chrysammanic add, is actually C'+ H* N^ 0" + N'- H^. Analysis con- 

 firmed these results. 



Chrysammide, dried at 212° F., yielded M. Mulder,— 



Experiment. Atoms. Calculation. 



C 38-00 14 38-6 



H 2-08 8 1-8 



N 19-15 6 19-3 



40-77 11 40-3 



According to the composition of rectified chrysammic acid, there 

 should be obtained, according to M. Robiquet, — 



Atoms. Calculation. 



C 28 39-4 



H 12 1-4 



N 10 16-3 



23 42-9 



Chi-j'sammide combines with bases and exhibits many important 

 reactions, the examination of which is continued by M. Mulder. 



'I'he chrysolepic acid of M. Schunck is merely nitropicric acid. 

 It is a substance the examination of which is very dangerous, on 

 account of the violence with which its compounds with bases ex- 

 plode. 



The above-stated analyses of chrysammic acid associate this sub- 

 stance to anilic, nitropicric and nitrophenic acids. 



Anilic acid. Chrysammic aciJ. 



CM H8 N'^ 0\ C'+ H'^ N' 0'\ 



H6 03, N'i O-', 



C* 03, C* O'. 



Cu FP N2 03, C'2 H- N2 O'. 



Nitropicric acid : 



C'2 H' Ne 0"= C'2 W W OHN- 0\ W- 0^ H'^O. 

 Hephninic acid : 



Q,n HI N" 0"=C'- H2 N'i 0-^+2 N^ 0^ H^O. 

 Nitrophenic acid : 



C'"- H'' N'* 0'''=C''2 H'^ N'2 03 + 2 N^ O^ 2 H^O. 

 Chrysammide, prepared in the humid way, in the cold, and dried 

 at 212° F., has the same composition as when prepared in the dry 



i 



