﻿Mixter 
  — 
  Products 
  of 
  the 
  Explosion 
  of 
  Acetylene. 
  5 
  

  

  rough 
  bomb 
  made 
  of 
  steam 
  fittings. 
  About 
  6 
  per 
  cent 
  of 
  

   acetylene 
  was 
  found 
  in 
  the 
  gas 
  remaining 
  after 
  an 
  explosion 
  

   under 
  a 
  pressure 
  of 
  3 
  atmospheres. 
  The 
  apparatus 
  was 
  unsatis- 
  

   factory, 
  as 
  it 
  had 
  three 
  small 
  metal 
  tubes 
  in 
  which 
  perhaps 
  the 
  

   acetylene 
  was 
  under 
  the 
  same 
  conditions 
  as 
  it 
  was 
  in 
  the 
  glass 
  

   eudiometers. 
  To 
  avoid 
  these 
  objections, 
  another 
  bomb, 
  fig. 
  6, 
  

   was 
  made 
  from 
  two 
  cylinders 
  such 
  as 
  are 
  used 
  to 
  hold 
  liquid 
  ni- 
  

   trons 
  oxide. 
  It 
  is 
  essentially 
  an 
  iron 
  cylinder 
  7*5 
  cm 
  in 
  diameter, 
  

   having 
  a 
  capacity 
  of 
  one 
  liter. 
  All 
  of 
  the 
  metallic 
  surface 
  of 
  

  

  6 
  

  

  cL 
  

  

  , 
  

  

  . 
  . 
  .. 
  

  

  f 
  ~ 
  

  

  : 
  -, 
  ■ 
  . 
  ' 
  ' 
  

  

  the 
  inside 
  was 
  smooth 
  and 
  bright. 
  The 
  part 
  a 
  was 
  fastened 
  

   permanently 
  in 
  the 
  coupling 
  and 
  the 
  part 
  o 
  was 
  connected 
  by 
  

   a 
  screw 
  made 
  gas-tiolit 
  with 
  wax 
  which 
  did 
  not 
  reach 
  the 
  inner 
  

   ends 
  of 
  a 
  and 
  b. 
  These 
  ends 
  fitted 
  closely. 
  The 
  electrodes 
  ee 
  

   were 
  in 
  the 
  middle 
  of 
  the 
  bomb, 
  one 
  was 
  insulated 
  and 
  the 
  

   other 
  was 
  connected 
  with 
  the 
  metal 
  of 
  the 
  bomb. 
  It 
  was 
  

   filled 
  by 
  means 
  of 
  a 
  pump 
  with 
  acetylene 
  from 
  a 
  gas 
  

   holder. 
  The 
  gas 
  was 
  dried 
  by 
  passing 
  it 
  through 
  a 
  cylinder 
  

   filled 
  with 
  a 
  kilo 
  of 
  small 
  stick 
  potash. 
  After 
  the 
  air 
  had 
  been 
  

   displaced 
  the 
  manometer 
  was 
  connected 
  at 
  c 
  and 
  the 
  gas 
  was 
  

   slowly 
  pumped 
  in 
  until 
  the 
  pressure 
  was 
  in 
  excess 
  of 
  that 
  

   desired. 
  Then 
  100 
  cc 
  of 
  the 
  gas 
  from 
  the 
  bomb 
  were 
  passed 
  

   ,into 
  a 
  eudiometer 
  and 
  treated 
  with 
  ammoniacal 
  cuprous 
  chloride 
  

   to 
  determine 
  its 
  purity. 
  The 
  manometer 
  was 
  disconnected 
  

   before 
  exploding, 
  since 
  it 
  was 
  shattered 
  by 
  the 
  first 
  explosion 
  

   in 
  the 
  smaller 
  bomb. 
  The 
  explosion 
  was 
  effected 
  by 
  sparks 
  

   from 
  a 
  coil 
  giving 
  a 
  4 
  cru 
  spark 
  in 
  air. 
  To 
  ensure 
  brief 
  spark- 
  

   ing 
  the 
  primary 
  circuit 
  was 
  closed 
  for 
  an 
  instant 
  only. 
  

   The 
  explosion 
  was 
  noiseless, 
  but 
  the 
  result 
  was 
  evident 
  from 
  

   the 
  increased 
  temperature 
  of 
  the 
  bomb. 
  

  

  Experiment 
  ?-9.— 
  Gas, 
  99 
  per 
  cent 
  of 
  acetylene; 
  pressure, 
  3 
  

   atmospheres. 
  Two 
  determinations 
  of 
  acetylene 
  gave 
  4 
  and 
  I'l 
  

   per 
  cent. 
  The 
  carbon 
  was 
  quite 
  bulky, 
  filling 
  about 
  half 
  of 
  

  

  