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Josh Bernbaum 09-09-2019 12:25 PM

Nitric acid alternative for dissolving gold?
I was ordering some more sodium nitrate online today and ran across this page on their site claiming that this product can replace the Nitric Acid in an aqua regia process (still need HCl though I think). Any thoughts?:

Pete VanderLaan 09-09-2019 03:59 PM

I can certainly see that the sodium nitrate would make an acid which would be attached to a base. HnO3 would be the regular acid but I assume this would make up some sort of NO3 that would have inclusive sodium, not something I'm sure if I would want.

It is a pain to get the nitric delivered these days. Ultimately, I got it from Graingers.

But you go first...

Josh Bernbaum 09-10-2019 07:59 PM

When it was delivered, I had to sign some form for the Nitric I ordered a while back. No doubt I'm on some sort of list now that I've had that and CdS and K dichromate shipped to my house over the years. But since our EPA have been instructed to promote extra pollution these days, maybe I don't need to worry. That mostly full bottle of Nitric does make me nervous though..

Bradley Howes 11-23-2019 12:07 PM

There's always sodium cyanide...

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