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   DIR Return to: 5. THE COMMONEST CASE—REFINING GOLD SCRAP THAT CONT...
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       #Post#: 141--------------------------------------------------
       THE COMMONEST CASE—REFINING GOLD SCRAP THAT CONTAINS NO PLATINUM
       METALS
   DIR By: BigBadWolf
       Date: February 17, 2014, 1:10 am
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       Chapter 5
       THE COMMONEST CASE REFINING GOLD SCRAP THAT CONTAINS NO PLATINUM
       METALS
       The first refining. Equipment and chemicals. "Acquaintance
       experiments." Beginning work,
       1. Preliminary treatments.
       2. Melting into a button, if desired.
       3. Treatment with nitric acid.
       4. Dissolving gold with aqua regia.
       5. Removing excess nitric acid.
       6. Recovering the dissolved gold with copperas.
       7. Washing the fine gold.
       8. Melting the fine gold.
       9. Saving the silver. Old filter papers. What to do if you spill
       acids or caustic.
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