There are things that I like to use nitric acid for and when I need it, I just make my own batch up to use. It is easy and in fact, I have another batch mixing up in the wash room so I can do some silver...
Here is a very simple way of making aqua regia acid for dissolving and refining gold. Take 1 quart of regular muratic acid and add 1 cup of sodium nitrate. Stir in using a wood or glass rod. The sodium nitrate...
There are 2 or more ways of recovering dissolved silver from nitric acid. One way is using table salt or stannous chloride crystals, BUT, there IS a really EASY way to do it. Just use a piece of copper metal...