﻿ITS 
  PRODUCTS 
  OF 
  DECOMPOSITION. 
  

  

  71 
  

  

  {4-463 
  grains 
  of 
  nitrocodeine 
  gave 
  

   10-226 
  ... 
  of 
  carbonic 
  acid, 
  and 
  

   2-377 
  ... 
  of 
  water. 
  

  

  

  

  Experiment. 
  

  

  

  

  Calculation. 
  

  

  

  

  I. 
  

  

  II. 
  

  

  III. 
  

  

  '*"'" 
  

  

  

  ' 
  ' 
  ~"S 
  

  

  Carbon, 
  

  

  63-10 
  

  

  62-83 
  

  

  62-49 
  

  

  62-79 
  

  

  c 
  3S 
  

  

  216 
  

  

  Hydrogen, 
  

  

  6 
  04 
  

  

  5-80 
  

  

  5-91 
  

  

  5-81 
  

  

  H 
  20 
  

  

  20 
  

  

  Nitrogen, 
  

  

  . 
  ... 
  

  

  

  

  8-11 
  

  

  N 
  2 
  

  

  28 
  

  

  Oxygen, 
  . 
  

  

  . 
  

  

  ... 
  

  

  ... 
  

  

  23-29 
  

  

  o« 
  

  

  80 
  

  

  100-00 
  

  

  344 
  

  

  These 
  results 
  correspond 
  with 
  the 
  formula 
  C 
  36 
  H 
  20 
  (N0 
  4 
  ) 
  NO 
  fi 
  , 
  derived 
  from 
  

   that 
  of 
  codeine 
  by 
  the 
  substitution 
  of 
  N0 
  4 
  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. 
  

  

  4*687 
  grains 
  of 
  the 
  sulphate, 
  dried 
  at 
  212°, 
  gave 
  1*383 
  sulphate 
  of 
  baryta. 
  

  

  This 
  corresponds 
  to 
  the 
  formula 
  C 
  36 
  H 
  20 
  (N0 
  4 
  ) 
  N0 
  6 
  HO 
  S0 
  3 
  , 
  which 
  requires 
  

  

  Experiment. 
  

  

  Calculation. 
  

  

  Nitrocodeine, 
  

   Water, 
  

   Sulphuric 
  acid, 
  

  

  10-13 
  

  

  10-17 
  

  

  344 
  

  

  9 
  

  

  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 
  : 
  — 
  

  

  {8-113 
  grains 
  of 
  platinochloride 
  of 
  nitrocodeine, 
  dried 
  at 
  212°, 
  gave 
  

   11-635 
  ... 
  of 
  carbonic 
  acid, 
  and 
  

   2.987 
  ... 
  of 
  water. 
  

  

  9*392 
  grains, 
  dried 
  at 
  212°, 
  gave 
  1 
  # 
  68 
  grains 
  platinum. 
  

  

  Experiment. 
  Calculation. 
  

  

  Carbon, 
  . 
  

  

  39-11 
  

  

  39-25 
  

  

  C 
  36 
  

  

  215 
  

  

  Hydrogen, 
  . 
  

  

  4-09 
  

  

  3-81 
  

  

  H 
  21 
  

  

  21 
  

  

  Nitrogen, 
  

  

  

  5-08 
  

  

  N 
  2 
  

  

  28 
  

  

  Oxygen, 
  

  

  

  14-58 
  

  

  °io 
  

  

  80 
  

  

  Chlorine, 
  

  

  

  19-35 
  

  

  Cl 
  8 
  

  

  106-5 
  

  

  Platinum, 
  

  

  1788 
  

  

  1793 
  

  

  Pt 
  

  

  98-7 
  

  

  100-00 
  

  

  550-2 
  

  

  