This mixture of two different acids was an important substance in the practice of alchemy.
Aqua regia (or alternatively aqua regalis) translates from Latin as 'King's water' and is comprised of both hydrochloric and nitric acid. The substance was used by alchemists as an effective way to dissolve gold, which was resistant to other acidic compounds.
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Category: Alchemical Symbols.
More symbols in Alchemical Symbols:
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century. Note that while notation like this was mostly standardized, sty… read more »