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Gold/Mining/Energy : Gold Price Monitor

GDXJ 107.29

-0.9%

Dec 2 4:00 PM EST

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To: E. Charters who wrote (82743)	3/2/2002 1:56:24 AM
From: Richnorth	Read Replies (1) of 116791

Very interesting post! But I have some difficulty understanding how nitric acid, HNO3(aq), was got from "......mix nitre with water and sulfur or pyrites, and heat it to get nitric." Nitre is KNO3; water is H2O; sulfur is S; pyrites is mixture of FeS and FeS2. The only way nitric acid, HNO3(aq), could be formed is for the combination of sulfur and pyrites to function as an oxidizing agent. But then sulfur can also function as a reducing agent. So, in the mixture of the above substances, I can picture a several reactions occurring at the same time. I suppose any nitric acid, HNO3(aq), that was produced, was dilute and was good enough to "clean" the mercury? Was the product mixture filtered or was it allowed to sit and settle and the nitric acid and by-products decanted off for use right away since the by-products in the mixture had no adverse affect on the cleaning process? P.S. I remember preparing some nitric acid in my high school chemistry class by heating potassium nitrate with concentrated sulfuric acid in a glass retort sitting over a hot sand bath. The HNO3(aq) distilled over and was collected in a long-necked glass flask.

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