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> As I understand it, the H2O2 is used to provide oxygen to the HCl,It's not all that dangerous, but you won't get much, if any,
> but using 3% peroxide slows it down because of dilution of the
> HCl. Has anyone tried just bubbling some oxygen through the HCl? Or
> is this just too dangerous to contemplate?? Thought I'd ask before
> trying.<smile>