Definition: Aqua regia is a mixture of hydrochloric acid (HCl) and nitric acid (HNO3) at a ratio of either 3:1 or 4:1.
Aqua regia is useful to dissolve gold.
Aqua regia is useful to dissolve gold.
Also Known As: royal water
Aqua Regia Definition
By Anne Marie Helmenstine, Ph.D., About.com Guide
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