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Brown ring test

  1. May 5, 2005 #1
    when considering the brown ring test to test NO3- do you first have to mix NO3- and H2SO4 together and then put newly made FeSO4 or
    first mix NO3- and newly made FeSO4 together and then pour H2SO4
    or does it it make any differance either way
  2. jcsd
  3. May 5, 2005 #2
    FeSO4 is to be out in the end along the sides of the test tube leading to the formation of a brown ring along the circumfrence of the liquid layer.
  4. May 5, 2005 #3
    Is there a reason for this?
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