172 UNIVERSITY OF COLORADO STUDIES 



Acid Determination. 



,3342 grjis. substance after boiling with water required 23 c. c. 

 of a .1136 N. Ba(OH). solution. 



Computed : Found : 



C,H,N,S„ 2H,S0„ 

 2H,SO,=37.98 % . 38.31 ^, . 



Hydrochloric Acid Salt. 



From a hot xylene solution of the base, a stream of dry HCl gas 

 precipitates the HCl salt. 



Acid Determination. 



.1887 grms. substance after boiling with water required 8.55 c. c. of a 

 .1136 N. Ba(0H)2 solution. 



Computed : Found : 



CjgHj2N2^2» 2HC1, 

 2HC1=18.58%. 18.78^r. 



Hydrobromic Acid Salt. 



The hydrobromic acid salt is prepared similarly to that of paratolu- 

 thiochi n an thren e . 



Acid Determination. 



.1953 grms. substance after boiling with water required 7.09 c. c. of a 

 .1136 N. Ba(0H)2 solution. 



Computed : Found : 



Cj^Hj^lST^S^, 2HBr, 

 2HBr=33.61%. 33.40%. 



Salts of the Base from Orthotoluquinoline. 



Nitric Acid Salt. 



Yellow crystals of the nitric acid salt separate out from a solu- 

 tion of the base in hot concentrated nitric acid. They contain two 



