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A sign for the acid mixture that dissolves gold.
Also known as: Royal water
'Royal water': a mixture of nitric and hydrochloric acids, and the only common reagent that dissolves gold. Its ability to attack the noble metal made it both practically important and theoretically startling.
Denotes aqua regia, a mixture of nitric and hydrochloric acids, named royal water because it dissolves gold — the king of metals — which neither acid does alone.
Encoded at U+1F728 ALCHEMICAL SYMBOL FOR AQUA REGIA.
Contexts: Software
A curved stroke crossed by a short diagonal line, drawn in a single hand-written figure.
Both are acid preparations distinguished in alchemical notation by what they will and will not dissolve.