P. T. Austen— Nitro-denimtnes of I); phenyl 'amine. 285 



A Iphapicrylbetapicrylamine. 



Preparation. — The alpl ai icryl metanitranil n was added in 

 small portions to a cooled mixture of' equal volumes of fuming 

 nitric and concentrated sulphuric acids. The liquid became 

 hot, and a violent reaction set in. After the reaction had sub- 

 sided, the liquid was poured into cold water. A bright sul- 

 <.v cream was in this manner obtained. If, however, 

 the acid solution is boiled for half an hour, the substance is 

 completely destroyed, and, on pouring the liquid into water, 

 only a resin is obtained. 



After washing out the acid with water, the cream was well 

 extracted with alcohol, by which means a resin, giving a deep 

 d solution, was removed.. The substance was then 

 dissolved in boiling glacial acetic acid, and precipitated by 

 concentrated chlorhydrie acid, well washed with dilute chlor- 

 hydric acid, dissolved again in boiling glacial ■ 

 boiled some time with animal charcoal, filtered, and allowed to 



Analysis.— A portion of the substance was purified by crys- 

 m from glacial acetic acid, dried at 100°, and submitted 

 to analysis. 



0-2876 "grms. of substance gave 0'3490 grms. of CO 2 and 

 0-0404 grms. of H 2 0. , - d 



0-2924 grms. of substance gave 0'3538 grms. of CO 3 and 0-0404 

 grms. of H 2 0. 



( C 6 H*(N0 2 ) 3 /? 

 The formula N 1 C6H2(N02) 3 a=d 2 H 6 N 7 CM2 

 H _ . 



H=l-13 1-56 1<53 



Soluhility.-It is almost insoluble in hot water coloring it, 

 however, slightly yellow. Chi- 



acids do not increase its e tbilta i? ater. In hot amyl and 

 e%l alcohols it is almost insoluble, hardly soluble in ether, 

 carbon tetrachloride, carbon disulphide, and chloroform in 

 cold glacial acetic acid, difficultly soluble, in the hot acid, it 

 dissolves eusilv 1 ■olaDle. _ 



la aqueous ammonia. > dmm audp.ra~M.un hydrates, it dis- 

 solves easily with a superb scarlet color. 



careful crystallization from glacial acetic ami. it : can .be 

 obtained in small transparent glittering crystals It tuses aj 



2 ? l ° to a ' L nid 



giass. By touching it with a hard object when m a liqmu 

 st ate, it solidifies to°a yellow amorphous mass. 



