Archaic term for nitric acid.
- The old name of nitric acid is aqua fortis meaning ‘strong water.’
- Old time gun makers stained their stocks with aqua fortis, a combination of nitric acid diluted with distilled water and iron filings.
- Nitric acid at this phase is called aqua fortis and when it is concentrated, concentrated nitric.
Late 15th century: from Latin, literally 'strong water'.
Definition of aqua fortis in:
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