374 DR ANDERSON’S RESEARCHES ON SOME OF THE 
purpose of indicating the great complexity of the decomposition which nitric acid 
produces. 
When the solution containing alcohol and ether, from which the apophyllic 
acid has been precipitated, is distilled, a syrupy residue of a more or less dark- 
brown colour is left, which, on the addition of caustic potass, immediately evolves 
the odour of a volatile base. In order to obtain this substance a considerable 
excess of potass was employed and the liquid distilled. A highly alkaline fluid 
passed into the receiver which gave abundant fumes with hydrochloric acid, and 
rapidly restored the blue of reddened litmus. In this fluid, ammonia and one or 
two other bases are always present. For the separation of the former the fluid is 
supersaturated with hydrochloric acid evaporated to dryness. and extracted with 
absolute alcohol at the boiling temperature. The filtered solution deposits on 
cooling traces of sal ammoniac, which are dissolved even in absolute alcohol. The 
alcohol, on distillation, leaves a salt in fine scales, which gives, with bichloride of 
platinum, a yellow precipitate soluble in boiling water, and deposited, on cooling, 
in fine golden-yellow scales, and sometimes needles. 
9-375 grains of platinum salt, dried at 212°, gave 
1-492 ... carbonic acid, and 
2°098 ... water. 
ae grains of platinum salt gave 


3878  ... platinum. 
Experiment. Calculation. 
eae oe EF A See 
Carbon, ; 4 4°34 5:05 C, 12 
Hydrogen, . : 2°48 2°52 H, 6 
Nitrogen, : : oe 5°93 N 14 
Chlorine, . j ee 44-89 Cl, 106-6 
Platinum, . . 41-81 41-61 Pt 98-7 
100-00 237°2 
These results correspond with the formula C, H, N HCl Pt Cl,, and indicate the 
presence of methylamine. 
Tn another experiment a platinum salt was obtained which gave,— 
9-075 grains of platinum salt gave 
2-615  ... — carbonic acid, and 
2098 ... ~ water. 
{ 8-475 grains of platinum salt gave 

3360... platinum. 
Experiment. Calculation. 
a 
Carbon, F 3 7:84 9°55 C, 24 
Hydrogen, . : 2°84 2°78 H, 8 
Nitrogen, . ; ode 5-99 N 14 
Chlorine, . 5 158 42:39 Cl, 106-5 
Platinum, . - 39°64 39-29 Pt 98-7 
100-00 251°2 
ea ys 
