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  • Gold Refining eBayGold Refining Kit Nitric HCL Urea SMB step by step

    1/2 lb bottle nitric acid substitute for aqua regia gold refining only This is mixed with hydrochloric 2 1/2 tablespoons to 90ml or 2 1/2 tablespoons to 120ml muriatic acid instead of nitric acid and Details about Gold Refining Kit Nitric HCL Urea SMB step by step directions and Video Nitric HCL Urea SMB step by step directions and Video 30 viewed per day

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  • Inquartation and Parting Refining Process Ganoksin CP TC Chemicals Gold Refining Forum

    Dilution of the gold content is necessary to ensure that the nitric acid can readily attack and dissolve the base metals and silver some of which may be otherwise masked by the gold Any palladium which is alloyed in the gold will also be removed by the acHI again Here is the question I have tried the technique of precipitating the gold with oxcalic ac I am not sure so please correct me if I am wrong but the procedure asks for CP oxcalic ac

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  • cp nitric acid for gold refining solutionsinfinityinHow to Refine Gold with Urea Greenway Biotech Inc

    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 Add 30 milliliters of nitric acid for every ounce of gold So if you re refining 5 ounces of gold you would need to add 150 milliliters to the container Allow the gold to sit in the nitric acid for 30 to 45 minut

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  • Best and Easiest way to refine gold dust to get 999 purityNitric Acid Nitric Acid AR Grade Aqua Fortis Nitric

    The nitric acid eats up the silver and leaves the gold on the bottom of the bowl after that my father dumps the liquid in a plastic bowl and washes the gold and then melts which makes it into a purity 24 Karat Now to separate the silver from nitric acid for this step you have to leave a copper wire in the bowl for 5 to 6 hours that makes leaves the powder on the bottom of the bowl Ask for Price Nitric Acid AR Grade is also known as spirit of nitre aqua fortis and made available in grade of 72 percent Available in its purest form it is a colorless liquid

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  • Sulfuric acid GoldRefiningWikiREFINING RECOVERY AND REFINING WITH JUST NITRIC ACID

    Sulfuric acid also spelled sulphuric acid or in old texts as oil of vitriol is one of the strong mineral acids and has a number of practical uses in refining The acid differs from hydrocloric acid and nitric acid in that it contains two hydrogen atoms that can be ionized in wateradd the nitric substitute acid just enough to cover the materials WITHOUT HEATING THE BATH IT WILL TAKE 3 TO 10 DAYS FOR THE ACID TO DESOLVE ALL THE NON GOLD METALS IF YOU HEAT THE BATH IT CAN BE FINISHED IN HOURS INSTEAD OF DAYS

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  • REFINING HOW TO REFINE GOLD WITH AQUA REGIAGold Platinum Refining by the Acid Method Precious

    recovery and refining gold instructions for aqua regia refining materials and mixing instructions if you need supplies go to our store enter the storeNitric acid is highly corrosive and highly toxic nitric oxide fumes when used in the aqua regia process of refining precious metal Additionally it is expensive and difficult to obtain By using Subzero instead of nitric acid nitric oxide fumes are completely eliminated Subzero can be comfortably stored for extended periods of time without deterioration or hazmat concerns Subzero is a safe

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  • How to Refine Gold with Pictures wikiHowNitric Acid For Water Treatment Gold Refining Buy Nitric

    07 07 32 In this Article Melt the Gold Add the Acid Add Urea and Precipitant Test the Acid for Dissolved Gold Cleaning the Gold Reconstituting the Gold Community Q A You may want to make some extra money by refining your own gold at home or you may be a jeweler who wants to refine gold Nitric Acid for water treatment gold refining Nitric acid is a colorless or yellowish fuming suffocating caustic corrosive water soluble liquid HNO3 having powerful oxidizing properties usually obtained from ammonia used chiefly in the manufacture of explosives and fertilizers and in organic synthesis

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  • where can i buy hydrochloric acid nitric acid used for Nitric acid GoldRefiningWiki

    03 25 32 Best Answer Mixing sulfuric acid and sodium nitrate will produce a solution containing sodium nitrate hydrogen and hydrogen sulfate ions Nitric acid solution contains hydrogen and nitrate ions so nitric acid can be thought of as a component of this solution but it will not be as strong as pure nitric Nitric acid HNO 3 is a colorless oxidizing ac It is the only pure acid that can dissolve copper and silver making it an important acid for refiners It is used both by itself when working with silver or mixed with hydrochloric acid forming aqua regia

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  • cp nitric acid for gold refining valmaroeuSourcing Nitric Acid in the UK Gold Refining Forum

    Geib Refining Corp Precious metal refining and reclaim Geib Refining Corp precious metal refining and reclaim testing needles a small bottle of nitric acid and a small amount of ordinary table salt 02 27 32 Hi all I am new here and this my first post Great forum by the way I live in the UK and I am just starting out in the Gold refining hobby I ve sourced and ordered Muriatic Acid Sodium Metabisulphite Urea and distilled water

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  • Gold parting WikipediaNitric Acid Lab Chemicals eBay

    The resulting six karat 6K gold can then be parted with dilute nitric acid one part 68 70 nitric acid to one part DISTILLED water With the karat gold this low 6K and over medium high heat the dilute nitric acid will dissolve the Sterling silver and other base metals in the karat gold starting on the outside surface of the 6K gold alloy working its way into the gold alloy forming 34OZ of 50 NITRIC ACID has 17OZ of NITRIC ACID in the bottle 32OZ of 70 NITRIC ACID has 224OZ of NITRIC ACID in the bottle That is 32 MORE GOLD PROCESSING POWER per OZ

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  • Dummies Guide to GOLD bullion refining at home as a long Gold Refining Chemistry Science Forums

    The nitric acid is used to dissolve any other contaminating metals in the item containing gold such as copper silver etc We need to remove such contaminants leaving behind relatively clean but not yet pure gold for final processingI was looking into gold refining and came across a lot of information on Aqua Regina While I found quite a feww step by step articles I have yet to find anything that explaines exactly why mixing these acids can dissove gold

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  • Gold purification through nitric acid bromicacidRefining Electronic Scrap Can t get nitric acid any more

    Dissolve the alloy in nitric acid then dissolve the residue in boiling aqua regia The solution is boiled down then diluted with the gold being precipitated with sulfur dioxide Again this is just the method outlined in that text but my personal experience with gold refining is fairly small aside from assorted attempts to dissolve in bromine/hypobromite solutionsA Nitric acid will dissolve most base metals if the gold content is about 25 or less If higher the undissolved gold will coat the bar and block penetration of the ac Hot dilute nitric cut at least 50 with water by volume will work better than concentrated nitric It takes about 1/2 gallon of concentrated 70 nitric diluted to one gallon with water to dissolve a pound of base metals

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  • How to Refine Gold by the Acid Method Shor Internationalcp nitric acid for gold refining hotelgouthammanorin

    How to Refine Gold by the Aqua Regia Acid Method Instructions The two acids which are used in this process are concentrated hydrochloric and nitric acids Nitric acid is very corrosive When combined with hydrochloric acid the fumes become much more corrosive So corrosive in fact that they will rust the highest grades of stainless steel with less than 1 second of exposure For this AFB gives itself over to the production of crushers and mills which can be used in aggregate crushing industrial milling and ore processing fields

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  • Assaying and Testing of Metals KMG Gold Sell Gold Gold Refining Purify Process Jewelry Tutorials

    The mixture is formed by freshly mixing concentrated nitric acid and concentrated hydrochloric acid usually in a volumetric ratio of 1 3 respectively although other ratios are made and used to test varying purities of gold It was named so because it can dissolve the so called royal metals or noble metals gold and platinumThis is a free tutorial on gold recovery method using nitric acid to extract pure gold from old gold and scraps of gold by process of dissolving unwanted metals When I use this refining method I regard the purity of the gold as 22kt and I alloy it accordingly down to 18kt or 14kt

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