XinHai Mining

Product Introduction

    • RECOVERY AND REFINING WITH JUST NITRIC ACID SUBSTITUTE

      if your bath has real fine gold dust that escapes through the paint filters then refilter the liquids with a coffee filter to catch the gold dust (the waste acid might contain silver, just add uniodized salt to the acid,if silver is present it will drop to the bottom as a white mud/curd)

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    • Gold Recovery Chemicals Ewaste recycling beginners guide

      14, 2017018332HF as a gold recovery chemicals Full name of HF is hydrofluoric acid. Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Its Other names are fluorhydric acid and Hydronium fluoride. It is most danger acid in the world. But in some method of gold recovery, its used.

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    • Gold Parting using Nitric Acid

      states that if all the silver is to be dissolved from gold by one boiling with nitric acid the amount of silver must be at least eight times the weight of the gold. When the proportion, 12189, is parted, the resulting gold is left as a porous sponge, if dilute acid is used for the first treatment.

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    • What Happens When You Put Gold in Muriatic Acid? Sciencing

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    • Gold precipitation mistakes YouTube

      10, 2015018332How To Recover Gold From Computer Scrap with Household Chemicals Duration 2157. sreetips 6,788,314 views

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    • Gold Recovery 8 Steps (with Pictures) instructables

      the gold fingers and clean circuit boards in the coffee pot, in another container mix two parts muriatic acid and one part hydrogen peroxide and add to the coffee pot until it just covers the gold fingers and wait a week giving it a stir daily.

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    • Refining Gold with Sulphuric Acid

      process comprised eight operations Inquarting and granulating the bullion. Solution of the granulated bullion in sulphuric acid. Smelting of the fusion of the insoluble residue of gold. Condensation of the acid fumes. Reduction of the silver sulphates by copper. Sweetening and melting the precipitated copper.

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    • Gold Recovery Correctly 12 Steps instructables

      07, 2011018332Gold fingers are typically found on PCI cards, ISA cards, or on Memory sims/dimms/etc. They create the corrosion free connection between the computer and the expansion card. This process can also be used to recover gold from CPU such as Pentium Pro, or Cyrix or older 486 and lower generation chips.

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    • How to Refine Gold With Nitric Acid Sciencing

      23, 2018018332Preparing Solutions. Let this sit for at least 30 minutes, at which point you can test to see if the gold is fully dissolved. Dip a stirring rod into the acid solution and dab the end of the rod onto a paper towel. Apply one drop of precious metal detection liquid onto the wet spot on the paper towel.

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    • Silver recovery from plated flatware,and other items YouTube

      04, 2015018332This video demonstrates a very unusual methode to recover silver from silver plated flatware,using Hydrogen Peroxide and hydrochloric acid.The video is for demonstration purposes

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