Aqua Fortis, also known as nitric acid, is a common and highly corrosive acid used in various industries. When searching for synonyms for Aqua Fortis, several options exist, including nitrous acid, spirit of Niter, and hydrogen nitrate. Other synonyms include red fuming nitric acid, which is a more concentrated version of Aqua Fortis with a higher concentration of nitric acid. Aqua Fortis is commonly used to dissolve metals such as copper and silver, and as a reagent in analytical chemistry. Its potent and corrosive nature means it must be handled with care and caution, and it should always be used in a well-ventilated area.