using nitric acid to refine gold

  • Silver refining Alternative to nitric acid? : Silverbugs

    Hi guys, Recently I got into silver refining using nitric acid prior to melting, which worked great and resulted in 95-98% pure silver. However...

  • Refining Electronic Scrap---- Can't get nitric acid any

    Refining Electronic Scrap---- Can't get nitric ... dissolve the base metals but not the gold without using nitric acid. ... can I use a furnace to refine the gold, ...

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  • Refining Electronic Scrap---- Can't get nitric acid any

    (2006) A. Hi Franklin, Unfortunately I don't know a way of dissolving the base metals without the use of nitric acid. Have you considered using a non-cyanide gold ...

  • 3 Ways to Assay Gold wikiHow

    How to Assay Gold. The naked eye cannot determine the purity of metals. This holds true for ore and jewelry alike. In order to determine the percent composition of a ...

  • How to Refine Gold (with Pictures) wikiHow

    Edit Article How to Refine Gold. Six Parts: Melt the Gold Add the Acid Add Urea and Precipitant Test the Acid for Dissolved Gold Cleaning the Gold Reconstituting the ...

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    However, if you choose to refine using the electrolytic way, ... Gold Refining with Nitric-acid-based Aqua Regia: ... Platinum Refining with Nitric-acid-based Aqua Regia:

  • how to refine gold using hydrochloric acid and nitric acid

    May 10, 2010· Aqua regia gold refining supply kit, refine gold 1/4lb , 1/4lb bottle nitric acid substitute for aqua regia gold refining only This is mixed with ...

  • Dummies Guide to GOLD bullion refining at home as a

    Dummies Guide to GOLD bullion refining at home as a long term precious metal investment made EASY ... 1. place the scrap gold into nitric acid

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    Gold Refining Equipment and Systems for Electrolytic, Aqua Regia Purification of Gold, Silver Platinum, Palladium and PGM. Processing and Recovery of Scrap, Jewelry ...

  • Dummies Guide to EASY silver bullion refining at home

    Dummies Guide to EASY silver bullion refining at home as a long ... In all the years that I've been refining silver and gold for a hobby and using nitric acid, ...

  • Gold Refining using Aqua Regia, Dislolve gold

    Dissolving Gold in an Aqua Regia Solution is a Gold Refining Process Gold Chloride and ... or dissolving gold using hydrochloric acid and nitric acid to create ...

  • Gold Refining Forum.com V

    AR= Aqua Regia = 1 part 70% Nitric Acid, 3 parts Muriatic Acid (some guys use 4 parts muriatic). Used to dissolve high karat gold, gold powder, gold foils, dissolves Platinum when hot. Excess nitric must be evaporated off or neutralized with Urea to pH 1 +/- 0.4, then drop gold with SMB.

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  • Refining silver from smithing, plating, mine sludges

    Q. I do lost wax casting and smithing. I refine gold with nitric acid at home, by mixing scrap gold of different karat with copper and then dissolving it in slightly ...

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  • How to Refine Silver Sapling.com

    Step. Put 150 ml of nitric acid for every ounce of silver you have in each bucket. Do not overload the bucket since it could overflow. You will need about two to ...

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  • Gold Wikipedia

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  • Copper/Silver dissolution using Homemade Nitric Acid

    Jul 13, 2008· Dissolution of a Copper/Silver ribbon using homemade Nitric Acid made via distillation. If you're interested in Precious Metals recovery/refining, please ...

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  • REFINING Italimpianti Orafi

    Aqua regia gold Refining Tumbler is a new technology compared to the static refining plants. It is mainly a total different way to work. The static refining unit is ...

  • Pins With Nitric Acid Gold Refining Forum.com

    Jun 14, 2014· Gold Refining Forum.com ... Use a gold button to consume free nitric acid. (Harold's trick). Leaving some gold undissolved. ( a form of the above method)

  • Old School! Straight Nitric Acid Testing Stebgo Metals Blog

    How to test gold and silver jewelry using nitric acid. See the common reactions precious metals have with nitric acid.

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  • Dummies Guide to GOLD bullion refining at home as a

    Dummies Guide to GOLD bullion refining at home as a long term precious metal investment made EASY page: 1

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  • Sourcing Nitric Acid in the UK Gold Refining Forum.com

    Feb 27, 2015· Gold Refining Forum.com ... Get a good collection of gold flakes from ... One alternativ is to make your own nitric acid by destillation using one part calcium ...

  • nitric acid use in gold refining irsil.org

    Dissolving Gold in an Aqua Regia Solution is a Gold Refining Process Gold Chloride and other precious metals are easily separated and refined. Homepage Johnson Matthey Noble Metals A leading supplier to the nitric acid industry.

  • Gold Recovery: 8 Steps (with Pictures) Instructables.com

    A week has passed and it is time to collect your gold flakes and dust from your cleaned fingers and circuit boards, after a week the acid darkens and with a stir the ...

  • Silver Wikipedia

    Silver is similar in its physical and chemical properties to its two vertical neighbours in group 11 of the periodic table, copper and gold. Its 47 electrons are ...

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  • Methods of Purifying Gold Cash for gold Toronto

    I would like to learn how to refine gold from gold dust. I have good quantities now of gold dust made from river-bed collections. How can I refine this stuff?