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RE: mordancage



Hi Chris-

> You ain't a kiddin!  My 135 volume bottle does not stand upright well
> because the bottom bulges out from expansion.  I have a question:  is it
> safe to heat the hydrogen peroxide, I wonder, in a microwave?

NO WAY JOSE!!!!!!  I think this is a decidely BAD idea!!!  I have no
first-hand knowledge - but "even" 40 volume is considered by many shippers
as bomb grade!  I wouldn't heat it at all!!  Why do you want to?!?

One of the faculty at The Maine Workshops who studies with Sudre told me a
few years ago that she went into her attic darkroom on very hot summer day
and the H2O2 had leaked out of the gallon jug onto the plywood floor - and
it was *smoking*!

H2O2 is an oxidizer - fire is an oxidation process.... she store the stuff
in the cool basement now (and so do I!!!)

Informed persons on this list may know better - or more than I do, and I'd
be happy to hear from them on this topic.  For now, I'd err on the side of
caution!

be careful!

Jon