What is KARAT Gold?
KARAT Gold refers to a solid gold item (or gold alloy), either shaped or casted into form of jewelry or Bullion Bars & Coins. The karat...
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Stannous Chloride – Test For Gold, Platinum and Palladium Presence
Stannous chloride test solution is one of the most important tool and a most have for any precious metal recovery and refining process,...
KARAT Gold Acid Test Solutions, Know How & Tips
When examining a Gold piece of KARAT jewelry, sometimes looking and identifying the gold jewelry Hallmarks is not enough. For this reason...
Refining Karat Gold and Silver Jewelry using Inquarting method - Part 1
The Inquartation method is one of the most common methods of refining low and medium karat gold jewelry (9K-18K) and can also serve the...
Refining Karat Gold and Silver Jewelry using Inquarting method - Part 2
4 - Gold precipitation with Sodium Metabisulfite. Now that we have our Gold solution (Chloroauric acid - HAuCl4) filtered and clean of...
High Karat Gold (21K-23K) - Refining and Melting. Pt. 1
Before we start, you should know that there is some dispute regarding a direct Aqua Regia (AR) refining process for high gold content...
High Karat Gold (21K-23K) - Refining and Melting. Pt. 2
5. Gold powder cleanup. The washing process is probably the most important one as it will remove the majority of contaminates that ha...
Gold Reduction with Oxalic Acid – Complete Process
Before explaining how to perform this process, it's probably be better if we first talk about why use it in the first place. As you...
Gold-N-Scrap
Recovery & Refining of Precious Metals
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