The solutions themselves can last quite
well. However, not everyone uses chemicals in the same way. So, several things
to ask the seller. Where did they come from? Did they buy them as a powder or
liquid? Did they routinely heat them? If so, how? Over heating PT solutions can
cause some problems.
If you and the seller use them as
delivered and they work a lot like you do, you’ll be in good standing to
judge for yourself. I have had a problem with this in the past, but you never
know. I did have one bottle of PD during a workshop turned into a PD/Ferric
solution by a slightly confused student.
Look for sediment in the bottles. Are you
in the same town or is this a buy sight un seen?
Sent: Friday, November 14, 2008
Subject: RE: buying previously
used pt/pd chemistry
I've done this and it's always been just fine. The
Pt/Pd/Na2 seem to be fairly bulletproof. It's not storage that is an issue, but
Date: Fri, 14 Nov 2008 08:08:58 -0800
Subject: buying previously used pt/pd chemistry
I know someone who is getting out of
pt/pd printing and selling a few solutions (pt, pd, na2) at good prices...any
danger in buying them besides the uusual caveats about how they were stored?