[Histonet] Re: RDO decalcifier

Robert Richmond RSRICHMOND <@t> aol.com
Wed Sep 5 13:56:14 CDT 2007

I don't see how your hazmats people can tell you what to do to dispose
of RDO, since nobody has any idea what's in it. It's a murky yellow
liquid that continuously throws a black sediment that has to be
filtered out if you're to see your specimen in it. It's sort of the
ultimate secret formula, and I've always wondered why it's so popular
- I've had to use it many different places in my travels.

I'd suggest either an ordinary proprietary decalcifier that's a clear
liquid, probably hydrochloric acid - or else save money and dilute
your own hydrochloric acid. You can re-use it for a while. When the
time comes to dispose of it, it can be safely diluted with a lot of
water and put down the drain.

Remember - it's been stressed on this list many times - that "Decal"
is a brand name still in use, and that other brands of decalcifying
solution should not be called Decal.

Bob Richmond
Samurai Pathologist (never a decalcified Carmelite)
Knoxville TN

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