Making TiO2 dissolve in acid organic

AI Thread Summary
To dissolve titanium dioxide (TiO2), it is essential to use specific solvents, as common acids like H2SO4, HCl, HNO3, citric acid, and ascorbic acid have proven ineffective. The most effective solvents for TiO2 dissolution are hydrofluoric acid and hot, concentrated sulfuric acid, though both are highly hazardous and require careful handling. The discussion highlights the challenges faced in dissolving TiO2 and emphasizes the need for caution when using strong acids.
Desy
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Hi, everyone..
I do want to 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.. :)
 
Chemistry news on Phys.org
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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