I40 UNIVERSITY OF COLORADO STUDIES 



NITROGEN DETERMINATION 



. 2544 grm. substance yielded 35 . i c.c. Nitrogen at 615 . 6 m.m. and 18°. 

 CX4H20N2 , N = i3.i6% Found, 12.98% Calc. 



SALTS OF THE BASE 



Hydrochloric acid salts. — A stream of dry hydrochloric acid gas 

 was led into a solution of the base in ether. At first a lemon yellow 

 precipitate was formed, which quickly changed to white. The white 

 precipitate, which was made up of minute crystals, proved on analysis 

 to be a di-hydrochloric acid salt. 



HYDROCHLORIC ACID DETERMINATION 



.2654 grm. substance, dissolved in water, required for neutralization 13.7 c.c. 

 of a .i3572N.NaOH solution. 



C14H20N. , 2HCI, HCl = 25 . 54% Found, 25 . 26% Calc. 



The yellow salt first precipitated could not be separated pure on 

 account of the speed with which it changed to the white salt. It is, 

 however, without doubt a mono-hydrochloride, as several analyses 

 of the impure substance showed. 



Hydrobromic acid salts. — From an ether solution of the base, dry 

 hydrochloric acid gas precipitates first a yellow mono-hydrobromide 

 which also quickly takes on more hydrobromic acid and becomes a 

 white crystalline di-hydrobromide. 



HYDROBROMIC ACID DETERMINATION 



. 1944 grm. substance, dissolved in water required 7.55 c.c. of a . 13572 N.NaOH 

 solution. 



C14H30N. , 2HBr, HBr = 42.68% Found, 42.85% Calc. 



Action of hydriodic acid gas. — Hydriodic acid gas precipitates from 

 an ether solution of the base, first a yellow and then a white salt, but, 

 at the same time, some decomposition takes place so that the salts 

 can not be obtained pure for analysis. 



Action of hydrochloric acid gas upon a chloroform solution of the base. — 

 A rather peculiar phenomenon appears when dry hydrochloric acid 

 gas is passed through a chloroform solution of the base. Instead of a 

 crystalHne precipitate of the salt being thrown down, apparently a 



