﻿78 
  Messrs. 
  McClung 
  and 
  Mcintosh 
  on 
  Absorption 
  oj 
  

  

  Table 
  VI. 
  

   Absorption 
  of 
  Chlorides. 
  

  

  Solution. 
  

  

  Percentage 
  Absorption. 
  

  

  Water 
  

  

  62-0 
  

   75-0 
  

   751 
  

  

  77-8 
  

   78-6 
  

   80-2 
  

   80-6 
  

   82-4 
  

   85-6 
  

   88-3 
  

   91-5 
  

   93-4 
  

   94-8 
  

  

  Magnesium 
  chloride 
  

  

  Sodium 
  ,, 
  

  

  Calcium 
  ,, 
  

  

  Potassium 
  „ 
  

  

  Ammonium 
  ,, 
  

  

  Hydrochloric 
  acid 
  

  

  Manganese 
  chloride 
  

  

  Conner 
  ,, 
  

  

  Zinc 
  ,, 
  

  

  Barium 
  ,, 
  

  

  Strontium 
  ,, 
  

  

  Cadmium 
  ,, 
  

  

  

  Table 
  VII. 
  

   Absorption 
  of 
  Sulphates, 
  &c. 
  

  

  Solution. 
  

  

  Percentage 
  Absorption. 
  

  

  Water 
  

  

  661 
  

  

  692 
  

   69-5 
  

   69-5 
  

   69-7 
  

   72-0 
  

   75-8 
  

   76-0 
  

   81-9 
  

   82-5 
  

   84-4 
  

   939 
  

   96-1 
  

   96-2 
  

  

  Ammonium 
  sulphate 
  

  

  Magnesium 
  ,, 
  

  

  Sugar 
  

  

  Sodium 
  sulphate 
  

  

  Sulphuric 
  acid 
  

  

  Potassium 
  nitrate 
  

  

  ,, 
  sulphate. 
  

  

  

  

  

  Cadmium 
  ,, 
  

  

  Potassium 
  iodide 
  

  

  ,, 
  bromide 
  

  

  

  This 
  particular 
  density 
  was 
  chosen 
  because, 
  in 
  the 
  majority 
  of 
  

   cases, 
  the 
  absorption 
  could 
  here 
  be 
  measured 
  with 
  the 
  greatest 
  

   accuracy. 
  

  

  From 
  Tables 
  VI. 
  and 
  VII., 
  and 
  in 
  the 
  case 
  of 
  the 
  salts 
  of 
  

   lead 
  and 
  mercury 
  from 
  the 
  previous 
  tables, 
  it 
  is 
  seen 
  that 
  the 
  

   absorption 
  depends 
  upon 
  two 
  factors, 
  namely, 
  the 
  kation 
  and 
  

   the 
  anion. 
  With 
  one 
  or 
  two 
  exceptions, 
  an 
  increase 
  of 
  atomic 
  

   weight 
  is 
  accompanied 
  by 
  an 
  increase 
  of 
  absorption. 
  For 
  

   the 
  chlorides 
  and 
  sulphates 
  respectively 
  the 
  order 
  of 
  absorption 
  

   is 
  as 
  follows, 
  the 
  first-named 
  being 
  the 
  least 
  absorbent 
  : 
  — 
  

  

  