Making TiO2 dissolve in acid organic

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SUMMARY

The discussion centers on the dissolution of titanium dioxide (TiO2) in various acids. Participants confirm that TiO2 is resistant to common solvents like H2SO4, HCl, HNO3, citric acid, and ascorbic acid. The only effective solvents identified are hydrofluoric acid and hot, concentrated sulfuric acid, both of which pose significant safety risks. The conversation emphasizes the need for caution when handling these hazardous materials.

PREREQUISITES
  • Understanding of chemical solubility principles
  • Familiarity with handling hazardous materials
  • Knowledge of acid-base reactions
  • Experience with laboratory safety protocols
NEXT STEPS
  • Research the properties and handling procedures for hydrofluoric acid
  • Study the effects of temperature on the solubility of TiO2 in sulfuric acid
  • Explore alternative methods for TiO2 dissolution
  • Investigate safety measures for working with concentrated acids
USEFUL FOR

Chemists, materials scientists, and laboratory technicians involved in titanium dioxide research or applications requiring its dissolution.

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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