Please join our new sister site dedicated to discussion of gold, silver, platinum, copper and palladium bar, coin, jewelry collecting/investing/storing/selling/buying. It would be greatly appreciated if you joined and help add a few new topics for new people to engage in.

Bullion.Forum

Reply to thread

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message

Harold_V; You are right of course, the sulfuric should be above 66% to penetrate the plate. I stand corrected.
I believe the extra oxidation from dichromates or some other oxidizer does help to promote flaking. Glycerin coupled with caustic reduces platinum salts to metal (platinum black), but I've never understood why one would think it would help in a acidic stripping cell. Dr. Poe

[QUOTE="Dr. Poe, post: 118592, member: 21456"] Harold_V; You are right of course, the sulfuric should be above 66% to penetrate the plate. I stand corrected. I believe the extra oxidation from dichromates or some other oxidizer does help to promote flaking. Glycerin coupled with caustic reduces platinum salts to metal (platinum black), but I've never understood why one would think it would help in a acidic stripping cell. Dr. Poe [/QUOTE]

Verification