﻿360 
  DR 
  ANDERSON 
  S 
  RESEARCHES 
  ON 
  SOME 
  OF 
  THE 
  

  

  ance 
  in 
  the 
  solution, 
  and 
  gradually 
  increases 
  in 
  quantity 
  until 
  the 
  fluid 
  becomes 
  

   filled 
  with 
  bulky 
  crystalline 
  flocks. 
  The 
  quantity 
  of 
  this 
  substance 
  produced 
  

   appears 
  to 
  depend, 
  to 
  a 
  great 
  extent, 
  upon 
  the 
  rapidity 
  of 
  the 
  oxidation, 
  being 
  

   sometimes 
  extremely 
  minute, 
  and 
  always 
  bearing 
  a 
  very 
  small 
  proportion 
  to 
  the 
  

   quantity 
  of 
  narcotine 
  employed. 
  When 
  these 
  flocks 
  have 
  ceased 
  to 
  increase 
  in 
  

   quantity, 
  they 
  are 
  separated 
  from 
  the 
  fluid 
  by 
  filtration 
  through 
  asbestos, 
  washed 
  

   with 
  water, 
  in 
  which 
  they 
  are 
  insoluble, 
  and 
  purified 
  by 
  solution 
  in 
  a 
  consider- 
  

   able 
  quantity 
  of 
  boiling 
  alcohol, 
  from 
  which 
  they 
  are 
  deposited 
  on 
  cooling 
  in 
  minute 
  

   needles. 
  To 
  this 
  substance 
  I 
  give 
  the 
  name 
  of 
  Teropiammon, 
  for 
  reasons 
  which 
  

   will 
  be 
  immediately 
  apparent. 
  

  

  Teropiammon. 
  — 
  As 
  obtained 
  by 
  the 
  process 
  just 
  described, 
  teropiammon 
  is 
  in 
  

   the 
  form 
  of 
  extremely 
  small 
  colourless 
  needles. 
  It 
  is 
  insoluble 
  in 
  water, 
  both 
  

   hot 
  and 
  cold, 
  and 
  undergoes 
  no 
  decomposition 
  by 
  boiling 
  with 
  that 
  fluid. 
  It 
  is 
  

   very 
  sparingly 
  soluble 
  in 
  cold 
  alcohol, 
  more 
  so 
  in 
  boiling; 
  and 
  it 
  is 
  also 
  very 
  little 
  

   soluble 
  in 
  ether. 
  Concentrated 
  sulphuric 
  acid 
  dissolves 
  a 
  small 
  quantity 
  in 
  the 
  

   cold, 
  with 
  a 
  yellow 
  colour, 
  and 
  on 
  heating 
  a 
  fine 
  crimson 
  colour 
  is 
  produced. 
  

   Nitric 
  acid 
  dissolves 
  it 
  readily 
  in 
  the 
  cold 
  ; 
  and 
  on 
  heating, 
  red 
  fumes 
  are 
  evolved, 
  

   and 
  on 
  dilution 
  with 
  water, 
  a 
  white 
  precipitate 
  of 
  teropiammon 
  in 
  an 
  altered 
  

   condition 
  is 
  obtained. 
  It 
  is 
  insoluble 
  in 
  hydrochloric 
  acid 
  and 
  in 
  ammonia. 
  

   Boiled 
  with 
  caustic 
  potash, 
  it 
  dissolves 
  with 
  evolution 
  of 
  ammonia, 
  and 
  opianic 
  

   acid 
  is 
  found 
  in 
  the 
  fluid. 
  At 
  my 
  first 
  examination, 
  I 
  considered 
  this 
  substance 
  

   to 
  be 
  identical 
  with 
  Wohler's* 
  opiammon, 
  but 
  the 
  entire 
  absence 
  of 
  xanthopenic 
  

   acid 
  in 
  this 
  reaction, 
  as 
  well 
  as 
  various 
  other 
  differences 
  in 
  its 
  properties, 
  con- 
  

   vinced 
  me 
  that 
  it 
  was 
  actually 
  different, 
  — 
  a 
  conclusion 
  which 
  has 
  been 
  confirmed 
  

   by 
  analysis. 
  

  

  ( 
  5-052 
  grains 
  of 
  teropiammon, 
  dried 
  at 
  212°, 
  gave 
  

   I. 
  } 
  10-960 
  ... 
  carbonic 
  acid, 
  and 
  

   { 
  2-262 
  ... 
  water. 
  

  

  (5-090 
  grains 
  of 
  teropiammon 
  gave 
  

   11-020 
  „. 
  carbonic 
  acid, 
  and 
  

   2-290 
  ... 
  water. 
  

  

  T 
  f 
  4-358 
  grains 
  of 
  teropiammon 
  gave 
  

  

  \ 
  1-515 
  ... 
  platinochloride 
  of 
  ammonium. 
  

  

  TT 
  f 
  7'31 
  2 
  grains 
  of 
  tor 
  opiammon 
  gave 
  

  

  \ 
  2-405 
  ... 
  platinocbloride 
  of 
  ammonium. 
  

  

  

  Es 
  

  

  periment. 
  

  

  

  Calculation. 
  

  

  

  Carbon, 
  

  

  59-16 
  

  

  59-04 
  

  

  58-91 
  

  

  ^60 
  

  

  360 
  

  

  Hydrogen, 
  

  

  4-97 
  

  

  4-99 
  

  

  4-74 
  

  

  H 
  29 
  

  

  29 
  

  

  Nitrogen, 
  

  

  2-18 
  

  

  2-06 
  

  

  2-29 
  

  

  N 
  

  

  14 
  

  

  Oxygen, 
  

  

  33-69 
  

  

  33-91 
  

  

  3406 
  

  

  °26 
  

  

  208 
  

  

  100-00 
  100-00 
  100-00 
  611 
  

  

  * 
  Annalen 
  der 
  Chimie 
  und 
  Pbarmacie, 
  vol. 
  1., 
  p. 
  6. 
  

  

  