So about 2 months ago I asked you guys if you know some methods of obtaining nitric acid. I got some helpful, some not so helpful and some that had nothing to do with the thread. This is a continuation of that thread that got archived. So if you cand help me out I ll be a very happy anon. For those who ask I am looking for methods that can be used to obtain nitric acid from eihter naturally occurring sources or chemicals that are cheap. PS no I don't want to blow up anyting I need it for aqua regia in gold refining