﻿384 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  following 
  are 
  some 
  additional 
  analyses 
  of 
  limestones 
  used 
  

   in 
  beet 
  sugar 
  manufacture. 
  Nos. 
  1 
  and 
  2 
  of 
  stone 
  used 
  at 
  Los 
  

   Alamitas, 
  Cal. 
  and 
  no. 
  3, 
  a 
  French 
  stone. 
  

  

  No. 
  1, 
  the 
  Colton 
  stone, 
  is 
  good 
  

  

  No. 
  2, 
  Oro 
  Grande, 
  is 
  passable 
  

  

  No. 
  3 
  is 
  bad. 
  

  

  12 
  3 
  

  

  Lime 
  carbonate 
  98.000 
  94.306 
  81.67 
  

  

  Magnesium 
  carbonate 
  .453 
  1.845 
  2.50 
  

  

  Iron 
  and 
  alumina 
  oxid 
  1.096 
  .929 
  .27 
  

  

  Silica, 
  sand, 
  etc 
  ". 
  281 
  .900 
  8.20 
  

  

  Moisture 
  051 
  .038 
  5.25 
  

  

  Organic 
  matter 
  and 
  magnesium 
  sul- 
  

   fate 
  701 
  1.37 
  

  

  Undetermined 
  116 
  1.281 
  .64 
  

  

  Chlorid 
  of 
  lime. 
  Lime 
  which 
  is 
  to. 
  be 
  used 
  for 
  the 
  manufacture 
  

   of 
  chlorid 
  of 
  lime 
  must 
  be 
  very 
  clean 
  for 
  on 
  this 
  hangs 
  the 
  possi- 
  

   bility 
  of 
  making 
  a 
  strong 
  and 
  stable 
  chlorid. 
  To 
  satisfy 
  these 
  

   requirements 
  the 
  limestone 
  must 
  be 
  sufficiently 
  pure 
  and 
  burned 
  

   as 
  well 
  as 
  possible. 
  For 
  this 
  reason 
  many 
  manufacturers 
  pur- 
  

   chase 
  the 
  limestone 
  and 
  burn 
  it 
  themselves. 
  The 
  burned 
  lime 
  

   should 
  be 
  free 
  from 
  carbonate 
  of 
  lime, 
  and 
  the 
  limestone 
  should 
  

   have 
  a 
  minimum 
  amount 
  of 
  sand, 
  clay 
  or 
  similar 
  impurities, 
  

   which 
  in 
  burning 
  do 
  not 
  of 
  course 
  turn 
  into 
  lime. 
  Aluminous 
  

   limestone 
  clears 
  with 
  difficulty 
  when 
  dissolved 
  and 
  hence 
  is 
  not 
  

   liked 
  by 
  bleachers 
  and 
  paper 
  manufacturers. 
  

  

  As 
  the 
  consumers 
  require 
  a 
  pure 
  white 
  lime 
  the 
  stone 
  must 
  

   contain 
  practically 
  no 
  manganese 
  or 
  iron. 
  These 
  metals 
  are 
  also 
  

   thought 
  by 
  some 
  to 
  injure 
  its 
  stability, 
  but 
  this 
  point 
  is 
  not 
  defi- 
  

   nitely 
  proved. 
  The 
  presence 
  of 
  magnesia 
  is 
  also 
  undesirable 
  as 
  

   the 
  greater 
  deliquescence 
  of 
  the 
  magnesium 
  chlorid 
  renders 
  the 
  

   lime 
  chlorid 
  less 
  stable. 
  

  

  The 
  presence 
  of 
  organic 
  or 
  bituminous 
  substances 
  in 
  the 
  lime- 
  

   stone 
  is 
  entirely 
  harmless 
  as 
  they 
  do 
  little 
  more 
  than 
  impart 
  a 
  

   dark 
  color 
  to 
  the 
  stone 
  and 
  pass 
  off 
  in 
  burning.* 
  

  

  a 
  Wagner. 
  Chemische 
  technische 
  Untersucflung's-methoden, 
  1893, 
  p.430. 
  

  

  