- acid utilized particularly in the production of fertilizers and explosives and rocket fuels
- Nitric acid.
old title for "concentrated nitric acid," c.1600, Latin, actually "strong water;" see aqua- + fort. So called for the power of dissolving metals (copper, silver) unaffected by various other agents.
Geber made this 'strong liquid', Nitric acid, by distilling green vitriol, with saltpetre and alum. Whenever pure its a colourless liquid, however it is frequently tinged brown by dissolved nitrogen oxides, which provide a peculiar smell.