595 



The new body, for which I propose the provisional name diazodi- 

 nitrophenol, is soluble in alcohol and ether, and crystallizes from the 

 former solvent in magnificent golden-yellow plates, which detonate 

 on heating. Acids have no action upon this substance ; on ebulli- 

 tion with water it appears to undergo decomposition ; alkalies induce 

 at once a copious evolution of gas, and give rise to the formation of 

 dinitrophenol. This metamorphosis appears to indicate that the 

 new body still belongs directly to the phenol-group ; the constitu- 

 tion of diazodinitrophenol may perhaps be best understood by re- 

 presenting it by the formula 



c, 2 (Wj, V. 



\ N 2 / 

 The transformation of this compound into 



involves the decomposition of 2 equivs. of water, the oxygen of 

 which appears to be consumed in the formation of secondary pro- 

 ducts of decomposition. No trace of oxygen, either free or com- 

 bined, could be found among the gaseous products ; the gas evolved 

 consisting, according to a minute examination, of perfectly pure 

 nitrogen. 



Diazonitrochlorphenol. 

 Treatment in a similar manner of amidonitrochlorphenol 



/H 2 \ 

 C 12 H 4 C1N0 6 =C 12 2 , 



\H 2 N/ 



a new mixed derivative of phenol, as might have been expected, has 

 furnished perfectly similar results. The new compound thus ob- 

 tained crystallizes in beautiful brown-red needles, of physical and 

 chemical properties similar to those of the preceding compound. 

 It contains 



/H, \ 



/PI \ 



C 12 H 3 C1N 3 6 =C 12 ^ Q JO,. 

 \N, 7 



VOL. IX. 2 8 



