Intelligence and Miscellaneous Articles. 237 



portion of water, but the author has not 3fet determined the quan- 

 tity, this salt gave — 



Experiment. Atoms. Calculation. 



C 34-1 14 33-9 



H 0-8 2 0-4 



N 11-2 4 11-3 



35-2 11 35-4 



KO 18-6 1 19 



M. Schunck gives 17*88 KO in 100, which is sensibly too low. 



Chrysammate of barytes, dried at 230" F. for several hours in a 



current of dry air, retains two equivalents of water. This salt 

 yielded — 



Experiment. Atoms. Calculation. 



C 28-80 14 28-5 



H 1-41 G 1-0 



N 4 9-5 



O 13 351 



BaO 25-91 1 259 



which represents C* H^ N+ O", BaO, 2 Aq. 



Chrysammate of copper, after being dried at 248° F., yielded — 



Experiment. Atoms. Calculation. 



CuO 16-45 1 16 



Anhydrous chrysammic acid 83'55 1 84 



A salt of lead obtained by means of chrysammate of potash and 

 neutral acetate of lead, yielded a basic salt, which, like the barytic 

 salt, was of a very fine red colour ; it yielded, — 



Experiment. Atoms. Calculation. 



C 20-28 14 19-8 



H 0-61 2 0-2 



N 6-20 4 6-6 



21-31 11 20-8 



PbO 51-GO 2 52-6 



M. Ilobiquet examined the reaction of ammonia on chrysammic 

 acid. He states that at 212° F. the resulting compound is C^o H'^ 

 jsjio O'-!^; AI. Mulder did not obtain a similar result. The atomic 

 weight and o.\ygen of chrysammic acid do not agree with this for- 

 mula : with 1 equivalent of hydrated chrysammic acid, that is to 

 say with C'-* H-* N« O'-, there is an elimination of H'-O, and an ad- 

 dition of N- H''. 



M. Mulder hns also stated that 100 parts of hydrated chrysammic 

 acid lose, after being well-dried at 212° F. in a current of dry am- 

 moniacal gas, 4-8 parts of water, and gain 4 of ammonia. 

 Then C" IP N"* 0'^-|-N^ H'^-H'^O gives— 

 Hydrated chrysammic acid. Water. 



2626-64 112-48= 100 :.r; 



a- = 4-3 Aq. 

 Experiment gave 4-8 parts of water. 

 In another experiment, — 

 Hydrated chrysammic acid. Water. Ammonia. 



2626-64 —112-48 -f 212-44=2726-60, 



262G-C4: 27-26-64 = 100: a: ; x=103-8. 



