386 
DR. A. W. HOFMANN’S RESEARCHES INTO THE 
1 equiv. of Hydrochlorate of Diamylamine . 
2 equivs. of Chlorine 
1 equiv. of Platinum 
1 equiv. of Platinum-salt 
Theory. Experiment. 
193*50 
53*29 
0 
0 
19*54 
98*68 
27' 17 
27'10 
363*18 
100*00 
Action of Bromide of Amyl upon Diamylamine. 
Triamylamine. 
This base arises from diamylamine in the same manner as the latter from amyla- 
mine. It is moreover obtained, and at once in a state of purity, by exposing oxide 
of tetramylammonium, which I shall describe presently, to a high temperature ; pre- 
pared by either way, this substance resembles in most of its physical and chemical cha- 
racters diamylamine ; it boils however at a much higher temperature, namely, at 257°. 
Its composition was fixed as that of diamylamine, by the analysis of the hydrochlorate 
and of the platinum-salt, the former being a very characteristic salt, which separates 
at once in nacreous plates on adding hydrochloric acid to the base, the latter being 
a viscid salt gradually solidifying to a crystalline mass. 
0*1022 grm. of the hydrochlorate gave 0*0551 grm. of chloride of silver. 
The formula 
C30 H33 N, H Cl= 
'Cio 
uo 
hJ 
N,HC1 
requires the following values : — 
Theory. 
^ A ^ 
1 equiv. of Triamylamine 227*00 86*15 
1 equiv. of Hydrochloric Acid 36*50 13*85 
1 equiv. of Hydrochlorate of Triamylamine . 263*50 100*00 
Experiment. 
13*73 
The following platinum-determinations were made with three different salts: I, 
and II. were prepared with triamylamine, obtained by the action of bromide of amyl 
upon diamylamine; salt III. was made with the base resulting from the decomposi- 
tion of oxide of tetramylammonium. 
I. 0*3270 grm. of platinum-salt gave 0*0750 grm. of platinum. 
II. 0*2182 grm. of platinum-salt gave 0*0500 grm. of platinum. 
HI. 0*3795 grm. of platinum-salt gave 0*0860 grm. of platinum. 
Percentage. 
I. 
. . . 22*90 
Platinum . 
II. 
22*91 
III. 
22*66 
