2 Lbs Ferrous Sulfate... Better Than Smb For Gold Scrap Refining And Recovery
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2 Lbs Ferrous Sulfate... Better Than Smb For Gold Scrap Refining And Recovery:
TWOPOUNDS OFFERROUS SULFATE!!!
HIGH QUALITY 99%+ PURITY
Ferrous Sulfateis used to precipitate gold from acid solutions
For over 100 yearsFerrous Sulfatehas beenused in the gold refining industry, long before sodium metabisulfite; andis still preferred by many refiners because it issuperior in dropping thegold cleanly, especially from dirtyor otherwise complexed solutions
Although we do not normally provide refining advice, a number of people have asked how to useFerrous Sulfate, sohere are recommendations consistent with C.M. Hoke's book... Dissolve one pound of Ferrous Sulfate (Copperas) in one quart of hot water, Hoke also suggests adding a small amount of HCl until the solution is green and somewhat clear. Added to aqua regia, this will precipitate 75 dwt or 116 grams of gold, assuming the pregnant solution is neutral. One advantage as a precipitant that is observed over SMB is Ferrous Sulfate can force small amounts of excess nitric from the solution, although this does consume more of the product. We strongly advise Hoke's book for any refiner, and you will find a great deal more information at www.goldrefiningforum.com.
Best of Luck in your precious metals refining activities!
Picture in adare refined gold buttons using the featured product as part of the refining process,
NOT AN ITEM FOR SALE
This item will be shipped USPS Priority Mailfor fast delivery to USA destinations.
A Material Safety Data Sheet (MSDS) for this product will be included on request.
ALSONOTE...This item is offered only to individuals who are knowledgeable and experienced in the safe handling and use of chemicals in the recovery and refining of precious metals! By purchasing, Buyer agrees to assume full liability and responsibility in the possession anduse of these products.
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Allproducts are intendedfor gold recovery and refining purposes only!
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