12 Rachel Lloyd, 



The under layer, a lighter colored amorphous mass, was im- 

 pregnated with a dark, oily liquid. Water was formed in 

 abundance. Pressure in tubes, very slight. The contents 

 of the tubes were warmed with dilute hydrochloric acid, then 

 with ether under return-condenser and the bases separated 

 according to previously described methods. 



Thyfnylamine : — 



N^H =CioH:3NHo 



separated as a very light-colored oil, which, after two distilla- 

 tions, boiled constantly at 230°. 



With sulphuric acid and potassium bichromate it gave the 

 characteristic reaction ; in the degree of its solubility in the 

 ordinary solvents, and in its compounds it showed its identity 

 with the cymylamine obtained by Widman ^ from cuminol, 



Dithynilaniine : — 



y Cio H]3 



N^CioHi3=QoH.6NH. 



The impure secondary amine, a dark smeary mass of 

 indistinct crystalline structure, was purified by repeated 

 distillation with superheated steam and fractionation in 

 an atmosphere of hydrogen. The greater portion of 

 the oil distilled between 340°-345° ; while above 346° par- 

 tial decomposition took place with evolution of yellow 

 fumes. 



The so-obtained, almost colorless base, which was not 

 solidified at — i8"C., had a pleasant aromatic odor, gave with 

 sulphuric acid a golden-brown color with a tinge of red : 

 slight fluorescence was noticeable. Nitric acid added to this 

 solution changed the color at once to dark -blue, which re- 

 mained unchanged. With a nitrite a greenish-blue tint was 

 produced. 



1 Berichte der Deutschen chem. Gesellschaft XV., 166. 

 108 



