stacy c wrote:
I have a little 22k testing solution in a dish because I was told that
it was a suitable silver etchant. (It actually did not etch my
silver, but perhaps I did not leave it in long enough or my image was
too thin.) In any case, I need to dispose of it because it can't go
back into the little squeeze bottle and I'm moving. It is a pretty
small amount...does anyone know of the proper way to dispose of it?

thanks in advance,
-stacy

Put the solution in a larger container and add liberal amounts of baking
soda, a small amount at a time, until the solution no longer "bubbles
up". Be very careful doing this so nothing splashes out. Wear safety
goggles and rubber gloves to adequately protect yourself.

Then dilute everything with water.

Add more baking soda.

The acid should now be sufficiently neutralized to be disposed of safely
down a drain or in a toilet.

--
Abrasha
http://www.abrasha.com