﻿ITS 
  PRODUCTS 
  OF 
  DECOMPOSITION. 
  65 
  

  

  Experiment. 
  

  

  Carbon, 
  .... 
  59-40 
  

   Hydrogen, 
  . 
  . 
  . 
  6-54 
  

  

  Nitrogen, 
  

   Oxygen, 
  

  

  

  Calculation. 
  

  

  

  59-66 
  

  

  ^36 
  

  

  216 
  

  

  6-07 
  

  

  H 
  22 
  

  

  22 
  

  

  7-73 
  

  

  N 
  2 
  

  

  28 
  

  

  26-54 
  

  

  On 
  

  

  96 
  

  

  100-00 
  362 
  

  

  Phosphate 
  of 
  Codeine. 
  — 
  Several 
  phosphates 
  of 
  codeine 
  appear 
  to 
  exist, 
  but 
  I 
  

   have 
  only 
  examined 
  that 
  which 
  is 
  obtained 
  by 
  saturating 
  tribasic 
  phosphoric 
  acid 
  

   with 
  codeine 
  in 
  powder. 
  In 
  this 
  way 
  a 
  fluid 
  is 
  obtained, 
  which, 
  when 
  concen- 
  

   trated 
  to 
  a 
  small 
  bulk, 
  refuses 
  to 
  crystallise, 
  but 
  from 
  which 
  crystals 
  are 
  imme- 
  

   diately 
  precipitated 
  by 
  the 
  addition 
  of 
  strong 
  spirit. 
  The 
  salt 
  is 
  thus 
  obtained 
  in 
  

   small 
  scales, 
  or 
  in 
  short 
  thick 
  prisms. 
  It 
  is 
  readily 
  soluble 
  in 
  water, 
  and 
  cannot 
  

   be 
  obtained 
  in 
  crystals 
  from 
  the 
  solution. 
  Its 
  analysis 
  gave 
  the 
  following 
  results, 
  

   corresponding 
  with 
  the 
  formula 
  C 
  36 
  H 
  21 
  N0 
  6 
  HO 
  2 
  HO 
  PO.. 
  

  

  {6-343 
  grains 
  phosphate 
  of 
  codeine, 
  dried 
  at 
  212°, 
  gave 
  

   12-618 
  ... 
  of 
  carbonic 
  acid, 
  

   3-708 
  ... 
  of 
  water. 
  

  

  

  acid, 
  

  

  Experiment. 
  

  

  54-25 
  

   6-49 
  

  

  

  Calculation. 
  

  

  

  Carbon, 
  . 
  

  

  Hydrogen, 
  

  

  Nitrogen, 
  

  

  Oxygen, 
  

  

  Phosphoric 
  

  

  54-27 
  

  

  6-03 
  

  

  3-52 
  

  

  18-09 
  

  

  18-09 
  

  

  C 
  36 
  

   H 
  24 
  

  

  N 
  

  

  o 
  9 
  

  

  ™ 
  5 
  

  

  216 
  

  

  24 
  

   14 
  

   72 
  

  

  72 
  

  

  10000 
  398 
  

  

  6*911 
  grains 
  of 
  the 
  crystallised 
  salt 
  lost, 
  at 
  212°, 
  0-434 
  grains 
  of 
  water=6*27 
  

   per 
  cent. 
  Three 
  equivalents 
  of 
  water 
  correspond 
  to 
  6*35 
  per 
  cent. 
  ; 
  and 
  the 
  formula 
  

   of 
  the 
  crystallised 
  salt 
  is, 
  consequently, 
  C 
  36 
  H 
  2l 
  N0 
  6 
  HO 
  2 
  HO 
  PO 
  + 
  3 
  HO. 
  

  

  Oxalate 
  of 
  Codeine. 
  — 
  This 
  salt 
  is 
  deposited, 
  on 
  cooling 
  its 
  saturated 
  hot 
  so- 
  

   lution, 
  in 
  short 
  prisms, 
  and 
  sometimes 
  in 
  scales. 
  It 
  requires 
  30 
  times 
  its 
  weight 
  

   of 
  water 
  at 
  60° 
  for 
  solution, 
  and 
  about 
  half 
  its 
  weight 
  at 
  212°. 
  Heated 
  to 
  212° 
  

   it 
  loses 
  water 
  of 
  crystallisation 
  ; 
  at 
  250° 
  it 
  becomes 
  brown, 
  and 
  at 
  a 
  higher 
  tem- 
  

   perature 
  it 
  is 
  entirely 
  decomposed. 
  

  

  {6-073 
  grains 
  oxalate 
  of 
  codeine, 
  dried 
  at 
  212°, 
  gave 
  

   14*739 
  ... 
  of 
  carbonic 
  acid, 
  

   3-608 
  ••• 
  of 
  water. 
  

  

  

  Experiment. 
  

   66-19 
  

  

  

  Calculation. 
  

  

  

  Carbon, 
  . 
  

  

  66-28 
  

  

  ^38 
  

  

  228 
  

  

  Hydrogen, 
  

   Nitrogen, 
  

  

  6-60 
  

  

  6-39 
  

   4-07 
  

  

  H 
  22 
  

  

  N 
  

  

  22 
  

   14 
  

  

  Oxygen, 
  

  

  • 
  • 
  • 
  • 
  

  

  23-26 
  

  

  o 
  10 
  

  

  80 
  

  

  

  100-00 
  

  

  344 
  

  

  . 
  XX. 
  PART 
  I. 
  

  

  

  

  

  s 
  

  

  