360 DR ANDERSON’S RESEARCHES ON SOME OF THE 
ance in the solution, and gradually increases in quantity until the fiuid becomes 
filled with bulky crystalline flocks. The quantity of this substance produced 
appears to depend, to a great extent, upon the rapidity of the oxidation, being 
sometimes extremely minute, and always bearing a very small proportion to the 
quantity of narcotine employed. When these flocks have ceased to increase in 
quantity, they are separated from the fiuid by filtration through asbestos, washed 
with water, in which they are insoluble, and purified by solution in a consider- 
able quantity of boiling alcohol, from which they are deposited on cooling in minute 
needles. To this substance I give the name of Teropiammon, for reasons which 
will be immediately apparent. 
Teropiammon.—As obtained by the process just described, teropiammon is in 
the form of extremely small colourless needles. It is insoluble in water, both 
hot and cold, and undergoes no decomposition by boiling with that fluid. It is 
-very sparingly soluble in cold alcohol, more so in boiling; and it is also very little 
soluble in ether. Concentrated sulphuric acid dissolves a small quantity in the 
cold, with a yellow colour, and on heating a fine crimson colour is produced. 
Nitric acid dissolves it readily in the cold ; and on heating, red fumes are evolved, 
and on dilution with water, a white precipitate of teropiammon in an altered 
condition is obtained. It is insoluble in hydrochloric acid and in ammonia. 
Boiled with caustic potash, it dissolves with evolution of ammonia, and opianic 
acid is found in the fluid. At my first examination, I considered this substance 
to be identical with WouHLER’s* opiammon, but the entire absence of xanthopenic 
acid in this reaction, as well as various other differences in its properties, con- 
vinced me that it was actually different,—a conclusion which has been confirmed 
by analysis. 
10-960 ... carbonic acid, and 
5-052 grains of teropiammon, dried at 212°, gave 
if 
2262 ... water. 



5:090 grains of teropiammon gave 
TI, 4 11:020  ... carbonic acid, and 
| 2:°290 ... water. 
I 4-358 grains of teropiammon gave 
: 1515  .., _ platinochloride of ammonium. 
ni 7-312 grains of toropiammon gave 
; 2-405  ... _ platinochloride of ammonium. 
Experiment. Calculation. 
ee 4S S| Se 
Carbon, . 59°16 59-04 58-91 C,, 360 
Hydrogen, . 4:97 4:99 4:74 H,, 29 
Nitrogen, 3 2°18 2:06 2-29 N 14 
Oxygen, ‘ 33°69 33°91 34:06 On 208 
100-00 100-00 100-00 611 
* Annalen der Chimie und Pharmacie, vol. 1., p. 6. 
ae 
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