HOW LONG IS AR GOOD FOR?

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tomcat7475

Member
Joined
Jul 8, 2018
Messages
9
May be a stupid question, but I have looked on here and can't find the answers to these.

What is the shelf life of AR?

If you make AR and dissolve gold in it, can it be stored and more added to dissolve more gold at a later date or does the complete process need to be finished at one time.

Also was wondering about poor man's AR for gold plated china. Can you use just enough HCL and bleach to remove the gold as you get each piece or does it need done as one large batch?
 
Never make AR in advance, you are better served by adding an excess of Hcl and then small increments of nitric to avoid denoxxing problems, allow the acids to work and use heat and life is much easier.
If you have made an AR solution you can try to reuse it but it’s ability to dissolve will slowly fade.
You are not describing poor mans AR in your last sentence, poormans AR is Hcl and a nitrate addition.

We have had several new members get this wrong so I’d advise all new members to ignore YouTube and begin learning here.
 
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