aqua regiaA caustic mixture of one part nitric acid and three parts hydrochloric acid, which dissolves gold and platinum. Aqua regia is used in the analysis of minerals and alloys, and as a powerful cleaning agent. Its name, which is Latin for "royal water", derives from the fact that it dissolves the "royal" metal gold. Related category• INORGANIC CHEMISTRYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |