Ivory bleach brass/stains

[Richard Wagner]

I've only been barely following this thread, so forgive me if this advice
has already been mentioned.

I've had problems with brass clamps turning ivory (somewhat) green before
although never to the extent mentioned, and not only after bleaching.
However, it's my guess that the green color is indeed residue from oxidized
brass, and that the brass oxidization was accelerated by the prescence of
residual Hydrogen Peroxide on the keys.

Now here's where I really go and show myself up for the scientifically
UNDER-EDUCATED  experimenter that I am...

I think that brass oxidizing and turning green is the equivelent of iron
oxidizing and turning brown i.e., RUST (for lack of a better word.)
If this is true, the problem is that you have brass-rust stains on the
ivory to deal with.
If it were me, I'd go back to my first line of defense when trying to
remove strange stains of any kind from ivory, and sand them again rather
than trying to re-bleach or try other chemicals thus, potentially, adding
more variables to the problem.

Try to sand the ivory to below the level of the green stain, and see if
that gets rid of it.  If it does, buff it next and breath a sigh of relief... 
If not (?)

Richard Wagner RPT



>I just want to add something about the combination of words included in
>phrases about failed bleaches ;)
>
>I'm talking about hair-bleaching, and I've seen some awful results (turning
>to green).
>
>I'm really not sure about how it got greenish. Just mail a hairdresser or
>something and he or she can probably explain if everyone on this list fails.
>You vill probably find some answers searching the web too.
>
>"If I had a dollar for every email I get from a HairBoutique.com visitor
>with a botched bleach job that has gone orange, green, spotted or purple, I
>would be rich by now."
>
>/Daniel Lindholm Sweden
>Bleaching using
>> Hi list,
>>
>> I have a question about the ivory clamp. Could It be that there was some
>gunk
>> on the brass that transfered to the ivory, and could wiping them (the
>clamps)
>> down with brass neutralizer help? Neutralize and then polish?
>>
>> Ray Irving
>
>
>
>