﻿AND 
  SOME 
  OF 
  ITS 
  DERIVATIVES. 
  411 
  

  

  shewn 
  in 
  the 
  following 
  analyses 
  ; 
  they 
  were 
  performed 
  on 
  specimens 
  prepared 
  at 
  

   different 
  times, 
  

  

  {6-277 
  grains, 
  dried 
  a 
  day 
  at 
  212°, 
  gave 
  

   8-395 
  ... 
  carbonic 
  acid, 
  and 
  

   2-60 
  ... 
  water. 
  

  

  I 
  6-150 
  grains, 
  dried 
  in 
  vacuo, 
  gave 
  

   I 
  8-205 
  ... 
  carbonic 
  acid, 
  and 
  

   II. 
  I 
  2-750 
  ... 
  water. 
  

  

  ' 
  5*751 
  ... 
  dried 
  in 
  vacuo, 
  gave, 
  burnt 
  with 
  soda 
  lime, 
  

   \ 
  14*650 
  . 
  . 
  . 
  platinum 
  salt 
  of 
  ammonia. 
  

  

  TTT 
  f 
  4-912 
  grains, 
  dried 
  in 
  vacuo, 
  gave, 
  burnt 
  with 
  soda 
  lime, 
  

   ' 
  \ 
  12580 
  ... 
  platinum 
  salt. 
  

  

  TV 
  f 
  4-925 
  grains, 
  dried 
  in 
  vacuo, 
  burnt 
  with 
  soda 
  lime, 
  gave* 
  

   \ 
  12-445 
  ... 
  platinum 
  salt. 
  

  

  

  I. 
  

  

  II. 
  

  

  Carbon, 
  

  

  36-47 
  

  

  36-38 
  

  

  Hydrogen, 
  . 
  

  

  4-60 
  

  

  4-96 
  

  

  Oxygen, 
  

  

  

  

  Nitrogen, 
  . 
  

  

  

  15-99 
  

  

  III. 
  IV. 
  

  

  Calculation. 
  

  

  36-23 
  C 
  84 
  504 
  

  

  4-52 
  H 
  63 
  63 
  

  

  43-01 
  75 
  600 
  

  

  16-08 
  15-86 
  16-24 
  N 
  la 
  224 
  

  

  lb 
  

  

  100-00 
  100-00 
  100-00 
  100-00 
  100-00 
  1391 
  

  

  The 
  formula 
  expressive 
  of 
  the 
  constitution 
  of 
  this 
  substance 
  as 
  an 
  ammonia 
  

   salt 
  of 
  the 
  above 
  acid, 
  is, 
  

  

  9 
  NH 
  4 
  0, 
  C 
  84 
  H 
  24 
  N 
  7 
  63 
  + 
  3 
  aq. 
  

  

  And 
  the 
  acid 
  itself, 
  considered 
  with 
  regard 
  to 
  its 
  amount 
  of 
  basic 
  water 
  as 
  indi- 
  

   cated 
  in 
  the 
  salt, 
  is 
  represented 
  thus, 
  

  

  9 
  HO, 
  C 
  84 
  H 
  24 
  N 
  7 
  63 
  + 
  6aq. 
  

  

  I 
  attempted 
  to 
  determine 
  directly 
  the 
  amount 
  of 
  nitrogen 
  existing 
  in 
  the 
  yellow 
  

   salt 
  as 
  ammonia, 
  but, 
  upon 
  reflection, 
  I 
  despaired 
  of 
  success, 
  because 
  the 
  only 
  

   method 
  at 
  my 
  disposal 
  being 
  to 
  decompose 
  by 
  hydrochloric 
  acid, 
  and 
  evaporate 
  

   the 
  solution 
  filtered 
  from 
  the 
  precipitated 
  amidic 
  acid 
  with 
  bichloride 
  of 
  platinum, 
  

   I 
  saw 
  that 
  if 
  this 
  acid 
  behaved 
  as 
  amidogen 
  acids 
  are 
  known 
  to 
  do 
  in 
  concentrated 
  

   acid 
  fluids, 
  namely 
  to 
  regenerate 
  the 
  parent 
  acid 
  and 
  ammonia, 
  I 
  should 
  inevitably 
  

   obtain 
  an 
  excess. 
  Nevertheless 
  I 
  made 
  the 
  experiment, 
  and 
  the 
  lowest 
  result 
  I 
  

   obtained 
  was 
  10*4 
  per 
  cent, 
  nitrogen 
  : 
  now, 
  9 
  "08 
  corresponds 
  to 
  9 
  atoms 
  of 
  nitro- 
  

   gen. 
  I 
  also 
  attempted 
  to 
  form 
  other 
  salts 
  by 
  precipitation 
  of 
  solutions 
  by 
  that 
  of 
  

   the 
  ammonia 
  salt, 
  but 
  the 
  results 
  were 
  unsatisfactory 
  and 
  inconstant. 
  The 
  silver 
  

   salt, 
  a 
  yellow 
  gelatinous 
  precipitate, 
  dried 
  up 
  to 
  a 
  black 
  mass 
  ; 
  and 
  the 
  baryta 
  

   compound, 
  a 
  yellow 
  amorphous 
  precipitate, 
  insoluble 
  in 
  boiling 
  water, 
  gave 
  vary- 
  

   ing 
  numbers 
  on 
  analysis. 
  

  

  * 
  I 
  am 
  indebted 
  for 
  this 
  analysis 
  to 
  my 
  friend 
  Mr 
  Rowney. 
  He 
  performed 
  it 
  on 
  the 
  substance 
  

   mixed 
  with 
  sugar. 
  

  

  