Sorry for the delayed reply. I'm loosing a little sleep over this one. I got the kit from B&S, so I don't suppose there's oxalic acid in the bottle of ferric oxalate. Think I should purchase some and have it handy. Your question led me to investigate the New Platinum Book and I found that I can add EDTA Tetrasodium too. If yes, question is:
Originally Posted by clay
1. Is EDTA Tetrasodium similiar to the Edta Clearing Agent B&S sent me?
2. Is it okay now to add Edta to the already mix ferric Oxalate?
3. Does Oxalic acid do a better job than Edta added to Ferric Oxalate solution?
Next... Hope this isn't a dumb question, but does it make sense to alter the pH of the rinse/wash water by adding a little of "something" to it?
I've got a nice print made a few days ago and I'm 100% sure it hasn't been cleared sufficiently. The print border isn't masked. With all the soaking in pH positive rinse/water baths, will it retard clearing action if I did re-clearing, following the procedure as you described earlier?
Thanks again for being so helpful.