
ITS PRODUCTS OF DECOMPOSITION. (al 

4-463 grains of nitrocodeine gave 
III. < 10-226 ... of carbonic acid, and 
{ 2°377 ~... of water. 
Experiment. Calculation. 
RT eee ae ne 
Ile TI. Il. 
Carbon, . 4 ; 63:10 62°83 62:49 62:79 C,, 216 
Hydrogen, : : 6:04 5:80 591 5°81 H,, 20 
Nitrogen, ’ me age ae 8-11 5 28 
Oxygen, . : : Ec eat aot 23°29 On 80 
100-00 344 
These results correspond with the formula C,,H,,(NO,) NO,, derived from 
that of codeine by the substitution of NO, in place of an equivalent of hydrogen. 
It is confirmed by the analysis of its platinum salt, which was found to contain 
17°88 per cent. of platinum, giving for the atomic weight of the base 345°8: the 
calculated atomic weight is 344. 
Hydrochlorate of Nitrocodeine.—Nitrocodeine dissolves readily in hydrochloric 
acid, and the solution on evaporation leaves the hydrochlorate in the form of a 
resinous mass, which cannot be made to crystallise. 
Sulphate of Nitrocodeine is obtained in a radiated group of short-pointed 
needles, which are neutral to test-paper, and very soluble in boiling water. 
4687 grains of the sulphate, dried at 212°, gave 1-383 sulphate of baryta. 
This corresponds to the formula C,,H,, (NO,) NO, HO SO,, which requires 

Experiment. Calculation. 
. is Reprrr e 
Nitrocodeine, 4 é 4 ae a aes 344 
Water, ' i : 5 dhe pi pat 9 
Sulphuric acid, B 3 i 10-13 10°17 be 40 
393 
Oxalate of Nitrocodeine.—Crystallises in beautiful yellow short prisms, readily 
soluble in water. 
Platinochloride of Nitrocodeine.—This salt is precipitated from the solution of 
the hydrochlorate as a yellow powder, insoluble in water and alcohol. Its ana~ 
lysis gave the following results :— 
11:635 ... of carbonic acid, and 
8-113 grains of platinochloride of nitrocodeine, dried at 212°, gave 
2.987 ... of water. 
9-392 grains, dried at 212°, gave 1:68 grains platinum. 
Experiment. Calculation. 
Carbon, é j : : 39°11 39°25 Cr 215 
Fveeseen, Y E y c 4:09 2 * a Be 
itrogen, : . : abe 2 
Oxygen, . . ; ae 14:58 0, 80 
Chlorine, . a ‘ 4 Ae 19°35 Ci, 106°5 
Platinum, . ; f c 17:88 17:93 Pt 98-7 


