ACTION OF THE HALOGENS, ETC. l'^-> 



distilled over, which after recrystallization from alcohol melted at 

 ,S4° — 85°. White needles. 



Nitroo-en Determination. 



ID 



.1059 grms. substance gave 5.H c. c. N. at 735 m. m. and 20°. 

 Computed : Found : 



C,H,NBr, 



N=6.30%. 6.05%. 



Bromine Determination. 



.1322 grms. gave .1131 grms. Ag Br. 



Computed : Found : 



Br-^36.03'/,. 36.42%. 



Platinum Double Salt. 

 Platinum chloride precipitates the double salt from the llCl 

 solution of the base. Yellow needles. 



Platinum Determination. 



.1202 grms. substance gave .0271 grms. platinum on ignition. 



Computed: Found: 



(C,H,NBr),H,PtCl,, 



Pt=-22.83%. 22.55%. 



D. 



AoTioN OF Bromine upon Pakatoluquinoline in the Presence ok 

 Fuming Sulphuric Acid. 



Ten grams of paratoluquiuoline sulphate were dissolved in lifty 

 crrams of fuming sulphuric acid, after which twenty grams of bro- 

 mine were slowly added, the mixture being in the meantime kept 

 cool with ice. After heating the mixture four hours on the water 

 bath, it was poured into ice cold sulphurous acid and made alkaline 

 with ammonia. The white precipitate which formed was filtered off 

 and washed. The product crystallizes from acetic acid in colorless 

 needles which melt at 135 "^ --136°. The yield is almost quantitative. 



