How To Use Aqua regia In A Sentence
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~ -- Ores, &c., containing antimony are best opened up by boiling with hydrochloric acid or aqua regia; treatment with nitric acid should be avoided wherever possible, since it forms antimonic acid, which is subsequently dissolved only with difficulty.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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In a separate vessel, dissolve some tin filings in just enough aqua regia to make a solution.
The Creation of Color in Eighteenth-Century Europe
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Aqua regia slowly dissolves it, forming platinic chloride (PtCl_ {4}), which in turn unites with the hydrochloric acid present in the aqua regia, forming the compound chloroplatinic acid (H_ {2} PtCl_ {6}).
An Elementary Study of Chemistry
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Another perhaps added to these the ideas of fusibility and fixedness, two other passive powers, in relation to the operation of fire upon it; another, its ductility and solubility in aqua regia, two other powers, relating to the operation of other bodies, in changing its outward figure, or separation of it into insensible parts.
An Essay Concerning Human Understanding
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For, though in the substance of gold one satisfies himself with colour and weight, yet another thinks solubility in aqua regia as necessary to be joined with that colour in his idea of gold, as any one does its fusibility; solubility in aqua regia being a quality as constantly joined with its colour and weight as fusibility or any other; others put into it ductility or fixedness,
An Essay Concerning Human Understanding
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Aqua regia is basically a mixture of nitric and hydrochloric acids, and it is one of the few chemical reagents potent enough to corrode gold.
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Kunckel had described experiments to calcine gold with aqua regia to make a transparent red color. 7 The affiliation of the best examples of this product with German and Bohemian glassmakers was exploited by Mayer Oppenheim when he applied for patents in Britain to make ruby and garnet colored glass.
The Creation of Color in Eighteenth-Century Europe
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To separate the platinum the alloy is dissolved in aqua regia, which converts the platinum into chloroplatinic acid
An Elementary Study of Chemistry
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Aqua regia slowly dissolves it, forming platinic chloride (PtCl_ {4}), which in turn unites with the hydrochloric acid present in the aqua regia, forming the compound chloroplatinic acid (H_ {2} PtCl_ {6}).
An Elementary Study of Chemistry
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What I have said here of the nominal essence of gold, supposed to consist of a body of such a determinate colour, weight, and fusibility, will hold true, if malleableness, fixedness, and solubility in aqua regia be added to it.
An Essay Concerning Human Understanding
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The metal osmium is very stable in the air, the melting point is 2700 degrees Celsius, it does not dissolve in the ordinary acid, will not be corroded in the aqua regia.
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By treating a solution of stannous chloride with aqua regia, stannic chloride is formed:
An Elementary Study of Chemistry
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We didn't see him get splashed with anything last issue--and chloroplatinic acid is not nearly as easy to make as just dumping aqua regia on platinum, although that's a step in the process.
Week 23: Black Adam and Grey Theology
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Medieval alchemists classified nitric acid and some mixtures of hydrochloric acid as aqua fortis (strong water) and aqua regia (royal water) because they were such good solvents.
First Contact
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The technique, attributed to Cornelis Drebbel, used a tin mordant to brighten the color produced by cochineal. 11 The discovery, as reported in the eighteenth century, was a fortuitous accident similar to that of Prussian blue; fortunate in that the discovery happened to someone able to recognize and exploit it. reference Drebbel, it was said, accidentally broke a container of tin-infused aqua regia over a container of the cochineal extract used in making thermometers.
The Creation of Color in Eighteenth-Century Europe
