MOLECULAR CONSTITUTION OF THE VOLATILE ORGANIC BASES. 
121 
which requires the following values : — 
Theory. 
A 
Experiment. 
8 equivs. of Carbon . . . 
. ' 48*00 
17-19 
17-33 
12 equivs. of Hydrogen . . 
12*00 
4*30 
4*39 
1 equiv. of Nitrogen . . . 
14*00 
5*03 
3 equivs. of Chloriije . . . 
. 106*50 
38*14 
1 equiv. of Platinum . . . 
98*68 
35*34 
35*45 
1 equiv. of Platinum-salt. . 
. 279*18 
100*00 
The preceding analyses establish the composition of diethylarnine, which is repre- 
sented by the formula 
Cg HiiN= C^njN. 
IC4 H5J 
Formation of Triethylamine [Triethylammonia). 
This arises from diethylarnine in the same manner as the latter from ethylamine : 
however unlike the deportment observed in the formation of diethylaniline, the ra- 
pidity of the action increases with the progress of the ethylation. A mixture of a con- 
centrated solution of diethylarnine with bromide of ethyl solidifies after a very short 
ebullition into a mass of beautiful fibrous crystals, sometimes of several inches in 
length, being the hydrobromate of a new base, for which I propose the name of tri- 
ethylamine or triethylammonia. This alkaloid may be readily separated by distilla- 
tion with potassa, when it presents itself in the form of a light, colourless, powerfully 
alkaline liquid, still very volatile and inflammable, and also pretty soluble in water, 
but in a less degree than diethylarnine. 
To fix the composition of triethylamine, the platinum-salt was subjected to analysis. 
This is one of the finest salts which I have ever seen. It is extremely soluble in 
water, and crystallizes on the cooling of concentrated solutions in magnificent orange- 
red rhombic crystals, which are obtained of perfect regularity and of very consider- 
able size (half an inch in diameter), even if very limited quantities of solution be em- 
ployed. The analysis of this salt, which slightly fused at 100°, shows that triethyl- 
amine may be considered as ammonia, in which the 3 equivs. of hydrogen are replaced 
by 3 of ethyl. 
I. 0’5950 grm. of platinum-salt gave 0’51 10 grm. of carbonic acid, and 0*2800 grm. 
of water. 
II. 0*1860 grm. of platinum-salt gave 0*0595 grm. of platinum. 
III. 0*5230 grm. of platinum-salt gave 0*1679 grm. of platinum. 
MDCCCL. 
R 
