Essais chimiques d’eckartshausen


Gold Dissociation Experiment



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Chemical Essays - Eckartshausen

Gold Dissociation Experiment


Gold is finely pulverized, phosphorus is taken, three times as much as the quantity of gold used can withstand26.

The metal is placed with the phosphorus in digestion for a few days. We can observe that the phosphorus is united with the gold on a sharp fire, the whole mass rises in flowers of gold color, which resolve like phosphorus with a lesser heat, and with a still less, take on a radiance. metallic.



Observations


I first observe that the liquefied phosphorus flows like a fluid oil on the zinc powder which has fallen to the bottom of the container.

If we continue digestion, as soon as it attacks it flows into a viscous mass of a dark red, in which we notice an internal fermentation.

If the gold is completely dissolved by the phosphorus, this mass becomes perfect if, after cooling, we: remove it from the utensil.





  1. In the present case, phosphorus can be understood as philosophical mercury.

It is pasty in consistency, but, in the open air and by movement, it hardens. On the other hand, in isolation, it sublimates gold in bloom.

But if one takes leaf gold and triturates it with mercury and then covers this amalgam with phosphorus and digests it for a few hours, then the easily fluent amalgam begins. to liquefy. The phosphorus penetrates the whole mass, the mercury unites with the gold and amalgamates the latter with the phosphorus. On high heat, the mercury overflows and the gold shows itself in flowers which, in the air, resolve into oil27.



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