MOLECULAR CONSTITUTION OF THE VOLATILE ORGANIC BASES. 
109 
Still hypothetical ethylochloraniline, after having dried it by a current of hot air, to 
the action of a considerable excess of bromide of ethyl. After two days’ exposure to 
100° the mixture was found to contain a hydrobromate in solution, not a trace of free 
base being left. There was no doubt that a second equivalent of ethyl had been 
assimilated. On decomposing the hydrobromate with potassa, an oil separated re- 
sembling, in its appearance and also in its odour, the preceding compound. An 
attempt to purify the ethylochloraniline from the potassa by distillation with water 
having failed, on account of the high boiling-point of this substance, the purification 
of the diethylochloraniline, for as such the new compound was to be considered, was 
at once effected with ether. The ethereal solution of the oil was carefully washed 
with water to remove adhering potassa, and evaporated : the yellow oil remaining 
after this treatment was dissolved in hydrochloric acid, and the solution mixed with 
bichloride of platinum. Immediately a splendid orange-yellow crystalline precipitate 
was separated, which after washing with water was fit for analysis. This salt fused 
at 100°. 
In the analysis a small quantity of platinum was lost. 
0’2376 grm. of platinum-salt gave 0‘0583 grm. of platinum. 
The formula 
C 20 Cl N, H Cl, Pt CI 2 , 
requires the following values : — 
Theory. 
1 equiv. of Diethylochloraniline 
. 183-50 
47-09 
1 equiv. of Hydrochloric acid . 
36-50 
9-37 
2 equivs. of Chlorine .... 
. 71-00 
18-22 
1 equiv. of Platinum .... 
98-68 
25-32 
1 equiv. of Platinum-salt . . . 
389-68 
100-00 
Experiment. 
24-53 
The result, although somewhat below theory, shows that chloraniline, when subjected 
to the action of bromide of ethyl, exhibits absolutely the same deportment as aniline 
itself, two equivalents of ethyl being consecutively introduced which give rise to 
the formation of two new terms, which demand the names ethylochloraniline (ethy- 
lochlorophenylamine) and diethylochloraniline (diethylochlorophenylamine). 
Action of Bromide of Ethyl upon Bromaniline. 
The absolute analogy existing between chloraniline and bromaniline, to which I 
have alluded in a former paper*, is maintained also in the deportment of these two 
substances towards bromide of ethyl. Bromaniline is rapidly converted into hydro- 
bromate of ethylobromaniline which could not, except by analysis, be distinguished 
from the corresponding chlorine-base. The platinum-salt being likewise a viscid oil. 
* Chem. Soc. Mem. ii. 291. 
