What substances could be used to gelify 60% hydrogen peroxide? I imagine anything organic like agar would be broken down by the radicals. I tried looking up what dentists use and the only thing that came up was glycerine, which I know from experience doesn't make gels with water, so I doubt it would work with $\ce{H2O2}.$

  • $\begingroup$ Dentists use what they call carbamide peroxide to avoid premature decomposition of the gel itself. $\endgroup$
    – andselisk
    Commented Sep 29, 2019 at 3:27
  • $\begingroup$ Since 60% H2O2 decomposition is highly exothermic and produces reactive oxygen rather violently, I'd question adding anything that might catalyze that reaction. $\endgroup$ Commented Oct 3, 2019 at 18:34


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