1871.] History of the Opium Alkaloids. 19 



Found. 



46-41 

 5-48 

 36-97 



Hence this body appears to have been formed by the reaction 

 C 68 H 88 N 4 O ]0 , 4HI + HI = C 68 tt 89 IN 4 O 10 , 4HI, 

 no water having been taken up ; whilst in the case of the other non-iodized 

 base, 3 molecules of HI and 12 of H 2 are assimilated. 



In order to see if the combined action of phosphorus and hydriodic acid 

 would transform the compound C G8 H 86 1 2 N 4 12 , 4HI into the body 

 C 68 H 82 1 2 N 4 6 , 4HI, the former compound was dissolved in about 10 

 parts of 55 per cent, hydriodic acid, and boiled until most of the acid had 

 volatilized ; a considerable quantity of phosphoric acid was formed during 

 the reaction, and on precipitating the compound produced with water, and 

 drying at 100°, the following numbers were obtained : — 



0-2795 grm. gave 0*3900 C0 2 and 0*136 H 2 0. 

 0-4195 grm. gave 0*327 Agl. 

 0-4225 grm. gave 0*333 Agl. 



Calculated. Found, 



> * s 



C 6S ... 816 38*42 38*06 



H 107 107 5*04 5*41 



I 7 889 41*85 42-12 42*59 



N 4 56 2*64 



16 256 12*05 



C 68 H 103 I 3 N 4 O 16 ,4HI 2124 100*00 



From these numbers it appears that the substance produced may be con- 

 sidered as formed by the reactions 



C 63 H 86 1 2 N 4 O la , 4HI + SHI = I 8 + 6H a + C e8 H 8a I 2 N 4 6 , 4HI, 

 C 68 H 62 1 2 N 4 O , 4HI + HI+ 10H 2 O « C C8 H 10 , I a N 4 O 10 , 4HI. 

 It is not easy to explain why the reaction should stop short at the end 

 of the first stage, when codeia is treated with hydriodic acid and boiled up 

 to 130°; possibly the presence of a much larger quantity of phosphorus 

 acids in this case may tend to prevent the second reaction ensuing. 



§ 5. Discussion of the foregoing Results* 

 From the complex constitution of the substances described above, it 

 is at present thought unadvisable to attempt to give names to them. 



c 2 



Calculated. 

 , * N 



C G8 816 46 36 



H 93 93 5*28 



I 5 635 , 36*09 



N 4 56 3*18 



O 10 160 9*09 



C 68 H 89 IN 4 O 10 ,4HI 1760 100*00 



