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Homework Help: In chemistry }}}

  1. Feb 15, 2007 #1
    How we can separate TeO2 from SiO2 ? :redface: :frown:
     
  2. jcsd
  3. Feb 15, 2007 #2

    chemisttree

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    The specific gravity of TeO2 is 5.9. Alpha quartz is the densest form of silica and has a SG of 2.648.

    Try using bromoform (SG 2.88). Silica will float and TeO2 will sink.
     
  4. Feb 16, 2007 #3
    what about using HCl

    TeO2 dissolves in HCl

    but SiO2 not

    ?????:frown: :redface: :frown:
     
  5. Feb 16, 2007 #4

    chemisttree

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    If you want to make TeCl4, try HCL.
     
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