Making TiO2 dissolve in acid organic

  1. Hi, everyone..
    I do wanna know, what are parameters that I have to know to dissolve TiO2,,?? I have tried many solvents like H2SO4, HCl, HNO3, citric acid, ascorbic acid, equi-molar citric/ascorbic acid,, but all was fail.
    could you tell me,,??
    Thank you.. :)
     
  2. jcsd
  3. SteamKing

    SteamKing 8,626
    Staff Emeritus
    Science Advisor
    Homework Helper

    See this article, p. 2:

    ftp://ftp.fao.org/ag/agn/jecfa/cta_tio2.pdf

    You can forget citric acid or ascorbic acid. TiO2 only slowly dissolves in hydrofluoric acid or hot, concentrated sulfuric acid, both of which are extremely dangerous to handle.

    Why the interest?
     
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