text: Aqua fortis, in alchemy, is a corrosive solution of nitric acid made from saltpeter. It was used in alchemy as a solvent for dissolving silver and most other metals with notable exceptions of gold and platinum that can be dissolved using aqua regia. Aqua fortis was prepared by mixing either sand, alum, or vitriol, or the last two together, with saltpeter, then distilling it by a hot fire. The gas collected from this condenses into aqua fortis/ \n\nSorry cant help you with the other