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Что (кто) такое koningswater - определение
MIXTURE OF NITRIC ACID AND HYDROCHLORIC ACID, IN A MOLAR RATIO OF 1:3
Royal water; Nitrohydrochloric acid; Nitromuriatic acid; Aqua Regis; Aqua Regia; Koningswater; Nitromuriate; King's water; Aqua regis; 🜆; 🜇; Chloroazotic acid; Chloronitric acid; Chloronitrous acid
![Freshly prepared aqua regia is colorless, but it turns orange within seconds. Here, fresh aqua regia has been added to these [[NMR tube]]s to remove all traces of organic material.](https://commons.wikimedia.org/wiki/Special:FilePath/Aqua regia in NMR tubes.jpg?width=200 "Freshly prepared aqua regia is colorless, but it turns orange within seconds. Here, fresh aqua regia has been added to these [[NMR tube]]s to remove all traces of organic material.")
![precipitate]] produced by the aqua regia chemical refining process](https://commons.wikimedia.org/wiki/Special:FilePath/Golddust.jpg?width=200 "precipitate]] produced by the aqua regia chemical refining process")
aqua regia
['ri:d??]
¦ noun Chemistry a highly corrosive mixture of concentrated nitric and hydrochloric acids.
Origin
C17: L., lit. 'royal water'.
Википедия
Aqua regia
Aqua regia (; from Latin, literally "regal water" or "royal water") is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a fuming liquid. Freshly prepared aqua regia is colorless, but it turns yellow, orange or red within seconds from the formation of nitrosyl chloride and nitrogen dioxide. It was named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.
