﻿366 
  dr 
  Anderson's 
  researches 
  on 
  some 
  of 
  the 
  

  

  from 
  it 
  in 
  fusing 
  readily 
  when 
  introduced 
  dry 
  into 
  the 
  water-bath, 
  which 
  opianyl 
  

   does 
  not. 
  Its 
  fusing 
  point 
  is 
  205°. 
  In 
  all 
  its 
  other 
  properties, 
  however, 
  it 
  is 
  

   quite 
  identical 
  with 
  opianyl. 
  It 
  gives 
  the 
  same 
  purple 
  with 
  sulphuric 
  acid, 
  and 
  

   shews 
  the 
  same 
  relations 
  to 
  solvents. 
  Its 
  analysis 
  gave 
  the 
  following 
  results 
  : 
  — 
  

  

  {4*295 
  grains 
  of 
  hydrate 
  of 
  opianyl, 
  dried 
  at 
  212°, 
  gave 
  

   9-265 
  ... 
  carbonic 
  acid, 
  and 
  

   2-000 
  ... 
  water. 
  

  

  {5-955 
  grains 
  of 
  hydrate 
  of 
  opianyl, 
  dried 
  in 
  vacuo, 
  gave, 
  

   12-840 
  ... 
  carbonic 
  acid, 
  and 
  

   2-905 
  ... 
  water. 
  

  

  

  Experiment. 
  

   I. 
  II. 
  

  

  Calculation. 
  

  

  

  

  

  

  

  Carbon, 
  . 
  

  

  58-83 
  

  

  58-84 
  

  

  59-11 
  

  

  C 
  20 
  

  

  120 
  

  

  Hydrogen, 
  

  

  5-17 
  

  

  5-42 
  

  

  541 
  

  

  H 
  n 
  

  

  11 
  

  

  Oxygen, 
  

  

  36-00 
  

  

  35-74 
  

  

  35-48 
  

  

  o 
  9 
  

  

  72 
  

  

  100-00 
  100-00 
  100-00 
  203 
  

  

  These 
  numbers 
  correspond 
  with 
  the 
  formula 
  C, 
  H 
  ]0 
  8 
  + 
  HO. 
  The 
  quantity 
  of 
  

   this 
  substance 
  which 
  I 
  obtained 
  was 
  too 
  small 
  to 
  admit 
  of 
  any 
  detailed 
  examina- 
  

   tion 
  of 
  its 
  chemical 
  relations. 
  

  

  Opianic 
  Acid. 
  — 
  The 
  fluid 
  which 
  has 
  deposited 
  opianyl 
  yields, 
  on 
  evaporation, 
  

   a 
  crop 
  of 
  crystals 
  of 
  opianic 
  acid, 
  which 
  are 
  readily 
  purified 
  by 
  solution 
  in 
  water 
  

   or 
  alcohol. 
  Its 
  properties 
  are 
  already 
  so 
  well 
  known, 
  that 
  I 
  have 
  not 
  thought 
  

   it 
  necessary 
  to 
  examine 
  them 
  further 
  ; 
  but 
  as 
  the 
  formula 
  given 
  by 
  Woeler 
  is 
  

   different 
  from 
  the 
  one 
  I 
  have 
  adopted, 
  which 
  is 
  that 
  of 
  Beezelius, 
  the 
  following 
  

   analyses, 
  in 
  which 
  every 
  care 
  was 
  taken 
  to 
  dry 
  the 
  substance 
  thoroughly, 
  may 
  

   be 
  of 
  value 
  as 
  confirming 
  the 
  correction 
  of 
  the 
  latter 
  chemist 
  : 
  — 
  

  

  ) 
  5-343 
  grains 
  of 
  opianic 
  acid, 
  dried 
  at 
  212°, 
  gave 
  

   11-170 
  ... 
  carbonic 
  acid, 
  and 
  

   2-440 
  ... 
  water. 
  

  

  (4 
  '5 
  2 
  8 
  grains 
  of 
  opianic 
  acid 
  gave 
  

   9-485 
  ... 
  carbonic 
  acid, 
  and 
  

   2-013 
  ... 
  water. 
  

  

  {4-883 
  grains 
  of 
  opianic 
  acid 
  gave 
  

   10-200 
  ... 
  carbonic 
  acid, 
  and 
  

   2-190 
  ... 
  water. 
  

  

  

  

  Experiment. 
  

  

  

  Calculation. 
  

  

  

  

  I. 
  

  

  II. 
  

  

  III. 
  

  

  

  

  

  Carbon, 
  

  

  56-99 
  

  

  57*12 
  

  

  56-96 
  

  

  57-14 
  

  

  ^20 
  

  

  120 
  

  

  Hydrogen, 
  

  

  5-07 
  

  

  4-93 
  

  

  4-98 
  

  

  4-76 
  

  

  H 
  10 
  

  

  10 
  

  

  Oxygen, 
  

  

  37-94 
  

  

  37-95 
  

  

  38-06 
  

  

  38-10 
  

  

  °1. 
  

  

  80 
  

  

  100-00 
  100-00 
  100-00 
  100-00 
  210 
  

  

  The 
  opianic 
  acid 
  of 
  the 
  last 
  of 
  these 
  analyses 
  was 
  prepared 
  by 
  the 
  decomposition 
  

   of 
  teropiammon 
  by 
  potash. 
  

  

  