aqua regia

aqua regia
/ree"jee euh/, Chem.
a yellow, fuming liquid composed of one part nitric acid and three to four parts hydrochloric acid: used chiefly to dissolve metals as gold, platinum, or the like. Also called nitrohydrochloric acid.
[1600-10; < NL: lit., royal water]

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      mixture of concentrated nitric and hydrochloric acids, usually one part of the former to three parts of the latter by volume. This mixture was given its name (literally, “royal water”) by the alchemists because of its ability to dissolve gold and other so-called noble metals.

      Aqua regia and other mixtures similar to it are used in analytical procedures for the solution of certain iron ores, phosphate rocks, slags, nickel-chromium alloys, antimony, selenium, and some of the less soluble sulfides, such as those of mercury, arsenic, cobalt, and lead.

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Universalium. 2010.

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  • Aqua regia — Aqua A qua, n. [L. See {Ewer}.] Water; a word much used in pharmacy and the old chemistry, in various signification, determined by the word or words annexed. [1913 Webster] {Aqua ammoni[ae]}, the aqueous solution of ammonia; liquid ammonia; often …   The Collaborative International Dictionary of English

  • aqua regia — statusas T sritis chemija ryšiai: žiūrėk – karališkasis vanduo …   Chemijos terminų aiškinamasis žodynas

  • aqua regia — [rē′jē ə] n. [L, lit., kingly water: it dissolves the “noble metals,” gold and platinum] a mixture of nitric and hydrochloric acids …   English World dictionary

  • Aqua regia — Freshly prepared aqua regia is colorless, but it turns orange within seconds. Here, fresh aqua regia has been added to these NMR tubes to remove all traces of organic material …   Wikipedia

  • Aqua regia — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Name Königswasser Andere Namen Königssäure Aqua regis Aqua regia Summenformel nicht zutreffend CAS Nummer …   Deutsch Wikipedia

  • aqua regia — karališkasis vanduo statusas T sritis chemija apibrėžtis HCl ir HNO₃ (3:1) mišinys. atitikmenys: angl. aqua regia; chloronitrous acid; nitrohydrochloric acid; universal solvent rus. царская водка ryšiai: sinonimas – aqua regia …   Chemijos terminų aiškinamasis žodynas

  • aqua regia — Nitrohydrochloric Ni tro*hy dro*chlo ric, a. [Nitro + hydrochloric.] (Chem.) Of, pertaining to, or containing, nitric and hydrochloric acids. [1913 Webster] {Nitrohydrochloric acid}, a mixture of nitric and hydrochloric acids, usually in the… …   The Collaborative International Dictionary of English

  • aqua regia — aqua re·gia rē j(ē )ə n a mixture of nitric and hydrochloric acids that dissolves gold or platinum called also nitrohydrochloric acid * * * a mixture of one part concentrated nitric acid to three or four parts concentrated hydrochloric acid; it… …   Medical dictionary

  • aqua regia — noun /ˌeɪkwəˈriːdʒiə/ An extremely powerful acid mixture composed of three parts concentrated hydrochloric acid to one part concentrated nitric acid. Syn: aqua regis, nitro hydrochloric acid …   Wiktionary

  • aqua regia — noun Etymology: New Latin, literally, royal water Date: 1612 a mixture of nitric and hydrochloric acids that dissolves gold or platinum …   New Collegiate Dictionary

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