DESTRUCTIVE DISTILLATION OF ANIMAL SUBSTANCES. 229 
8-105  ... carbonic acid, and 
6110 grains of hydriodate of ethylopyridine gave 
2:°520 ... water. 
5°445 grains of hydriodate of ethylopyridine gave 
5:395  ... iodide of silver. 
Experiment. Calculation. 
OM 
Carbon, ; : , 36:17 35°89 (OFF, 84 
Hydrogen, . s 4°59 4:27 Hi, 10 
Nitrogen, . : : 5-70 6:04 N 14 
Todine, 5 ; 5 53°34 53°80 I 126 
100-00 100-00 234 
The formula of the substance therefore is C,, H,, N I. 
Ethylopyridine itself may be separated from the salt by the action of oxide 
of silver. It forms a highly alkaline fluid, which undergoes decomposition when 
heated, with the evolution of a base which is no doubt ethylamine, and agrees com- 
pletely with it in properties, though the small scale on which the experiment was 
performed prevented my establishing this fact by analysis. It unites with acids, 
and forms salts, which are all crystallizable, and generally highly soluble. The 
platinum and gold salts are extremely beautiful compounds. 
Platinochloride of Ethylopyridine.—This salt was prepared in the same man- 
ner as the corresponding ethylopicoline compound. It is sparingly soluble in 
cold water, and insoluble in a mixture of alcohol and ether. When slowly formed, 
it is obtained in beautiful garnet-coloured rhomboidal plates with bevelled edges, 
which are easily got of a quarter of an inch in diameter, even when operating on 
very small quantities. Its analysis gave— 
6905 + carbonic acid, and 
7-152 grains of ethylopyridine platinum salt gave 
1885  ... water. 
{ 6-435 grains of ethylopyridine platinum salt gave 
2-035 ... platinum. 
Experiment. Calculation. 
Carbon, : Fs . 26°33 26°81 Ci, 84 
Hydrogen, . : : 2:92 3°19 Hy 10 
Nitrogen, . cecil opin 5°56 N 14 
Chlorine, . : 4 S4 33°93 Cl, 106-5 
Platinum, . i i 31-62 31°51 Pt - 98:7 
100-00 313-2 
The formula of the compound is C,, H,, N Cl+PtCl,. 
The gold compound of ethylopyridine is obtained in fine yellow plates of ex- 
treme beauty, sparingly soluble in cold water, and readily decomposed in boiling, 
especially if an excess of chloride of gold be present. They were not analysed. 
