Which acid is known as Aqua Fortis?
Nitric acid Albert the Great in the 13th century and by Ramon Lull, who prepared it by heating niter and clay and called it "eau forte" (aqua fortis). Glauber devised a process to obtain it by distilling potassium nitrate with sulfuric acid. In 1776 Lavoisier showed that it contained oxygen, and in 1785 Henry Cavendish determined its precise composition and showed that it could be synthesized by passing a stream of electric sparks through moist air. Nitric acid Nitric acid (HNO), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral acid. The pure
Aqua regia a solid product. If full dissolution of the platinum is desired, repeated extractions of the residual solids with concentrated hydrochloric acid must be performed. The chloroplatinous acid can be oxidized to chloroplatinic acid by saturating the solution with chlorine while heating. Dissolving platinum solids in aqua regia was the mode of discovery for the most dense metals, iridium and osmium, both of which are found in platinum ore and will not be dissolved by the acid, instead collecting on the base of the vessel. As a practical matter, when platinum group metals are purified through dissolution in aqua regia, gold