Aqua regia is the strongest acidic substance of all. It is also known as royal water because it can dissolve gold . It is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3.
Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
