Thanks. That was my guess, but I am glad to have it confirmed.
Originally Posted by Robert Hall
It lasts about forever. As always, give the chems a try. If you have issues, try some newer chems.
I have found that much of what we buy from the chem dealers has been sitting around for quite some time already.
I just printed a couple platinum prints last night with the ferric oxalate which is about 18 months old. Worked just fine. Why throw it away unless you can't get it to work?