aqua regia


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  • noun

Synonyms for aqua regia

a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)

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References in periodicals archive ?
Highest chromium and manganese amounts were detected in hydrochloric acid while for zinc it was in aqua regia.
This, however, is that powdered fulminating gold, which out of a solution of gold in aqua regia, by the fusion of oil of tartar through liquefaction (be careful, though and do not use too much, or you will lose the fulminating .
Extra care was taken to avoid errors in reading caused by acid interference, common with the aqua regia method.
All the analyses were conducted in duplicate except aqua regia digestion, which was conducted in triplicate and the mean values were collated for use in all data processing.
17 Which two acids are combined to make aqua regia, one of the few reagents able to dissolve gold?
The silicon chips are then plucked out with pliers and smothered with aqua regia, a mixture of hydrochloric and nitric acids.
Thus, the statue dissolved upon being immersed in aqua regia because it was made of gold.
He was the first to describe the preparation of hydrochloric acid, and he gave clear directions for preparing other strong acids such as sulfuric acid and aqua regia ("royal water," a mixture of sulfuric and nitric acids that was so powerful it would even dissolve the royal metal, gold).
The soil samples were digested by using aqua regia method and the aliquots obtained were analysed by using Atomic Absorption Spectrophotometer to determine the concentration of heavy metals in the samples.
b Wet-digestion with HNO3 andH2O2 (2:1) on hot plate, c Wet-digestion with mixture of HNO3 and HClO4 on hot plate, d Wet-digestion with aqua regia on hot plate, e Wet-digestion with reverse aqua regia on hot plate, f Wet-digestion with mixture of HNO3 and H2SO4 on hot plate, g Wet-digestion with mixture of HNO3 and HF on hot plate.
A total of 132 soil samples on a 20 by 40 meter grid were collected and assayed by SGS for Au (25gm Aqua Regia, DIBK,AAS finish), Cu Pb, Zn and Ag (ICP-AES after ARE Digest).