ITS PRODUCTS OF DECOMPOSITION. 63 
which was got anhydrous at 212°; and No. III. is a portion dried at 250°; it had 
become strongly alkaline, which accounts for the excess of carbon obtained. 
carbonic acid, and 
water. 
6:171 grains dried at 250° gave 
IT. ¢ 14:565 
3°795 



4-286 grains dried at 212° gave 
II. < 10:014 carbonic acid, and 
{ 2°603 water. 
5-740 grains dried at 250° gave 
Ill. < 13-667 carbonic acid, and 
{ 3467 water. 
Experiment. Calculation. 
_—_—__—————_—_——., 
I. Ii. Til. 
Carbon, 64:37 64:56 64:93 64:38 Cy, 216 
Hydrogen, 6°83 6-74 6-71 6-55 H,, 22 
Nitrogen, oes oo 4-17 N 14 
Oxygen, 14-32 0, 48 
Chlorine, 10-58 Cl 35°5 
100-00 335-5 
These results correspond to the formula C,,H,, NO, H Cl. 
Hydriodate of Codeine is obtained by dissolving codeine in hot hydriodic 
acid, and allowing the solution to cool. It is deposited in long slender needles, 
which fill the whole fluid, if it have been sufficiently concentrated. It is of rather 
sparing solubility in cold water, requiring about 60 times its weight, but is muck 
more soluble in boiling water. Its saturated cold solution is precipitated by am- 
monia on standing. No difficulty was experienced in its analysis. 
of carbonic acid, and 
6°336 grains hydriodate, dried at 212°, gave 
I. ¢ 11-190 
3:247 of water. 
5801 grains dried at 212°, gave 
II. ¢ 10-347 of carbonic acid, and 
2:977 of water. 
5733 grains of hydriodate of codeine gave 2994 grains of iodide of silver. 

Experiment. 
I. II. 
Carbon, 48-1 48-64 
Hydrogen, 5-69 5-70 
Nitrogen, — 
Oxygen, . ‘- 
Iodine, 28-22 
Calculation. 

48-60 
5:40 
3°15 
14-45 
28°40 

100:00° 

Ce 216 
H,, 24 
N 14 
0, 64 
I 126-36 
444-36 
The formula of the salt, dried at 212°, is, therefore, C,, H,, NO, HI+2 HO. 
