1863.J 419 



explosive like fulminate of mercury, the composition of which was 

 established by the analysis of a platinum-salt containing 



C 12 H 6 N 4 , 2HC1, 2PtCl 2 . 



The formation of this new substance is illustrated by the following 

 equation : 



C 12 H 12 N 2 +2HN0 3 + 2HN0 2 =C 12 H 6 N 4 , 2HNO 3 + 4H a O. 



v __ __ ; v ___ ___ ; 



Nitrate of benzidine. New compound. 



Of subordinate interest themselves, these substances deserve to be 

 noticed on account of the numerous and often peculiar bodies arising 

 from their decomposition. Thus the tetrazo-compound just described, 

 when boiled with water, splits according to the equation 



C 12 H 6 N 4 , 



Nitrate of tetrazo-compound. New substance. 



The new non-nitrogenous substance thus obtained crystallises in 

 small sublimable plates. Both formula and properties characterize 

 it as a compound standing, like phenol, upon the boundary line 

 between acids and alcohols : it furnishes a very extensive series of 

 derivatives, which may be generally represented by the formula 



2Phenyl-body 2H= new compound. 



Here I will only mention the chloride corresponding to the new 

 alcohol (acid). It crystallizes in white volatile plates, which maybe 

 readily prepared by heating the above-mentioned platinum-salt with 

 carbonate of sodium. The reaction takes place at 100. 



C 12 H 6 N 4 , 2HC1, 2PtCl 2 =C 12 H 8 Cl 2 + 2PtCl a -f4N. 



In conclusion, I may be allowed to state that nitrate of naphthyl- 

 amin likewise yields an azo-compound. This compound, 

 C IO H 6 N 2 HN0 3 



when submitted to the action of boiling water, undergoes a trans- 

 formation analogous to that of nitrate of diazobenzol, 



C 6 H 4 N 2 HN0 3 



Nitrate of diazobenzol. Phenol. 



C 10 H 6 N 2 HN0 3 -fH 2 0=C 10 H 



Nitrate of diazonaphthol. New compound. 



