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The gold refining process is principally used to attain the purest form of gold to and make it free from the impurities as well. These impurities may impair the quality of gold. At the moment, various methods have been introduced that are meant for refining gold. If you also want to have the pure gold then you just have to follow the steps that are used in the gold refining method, and then you are sure to have the pure form of gold.
Here in this article we will discuss only two gold refining methods. The name of the first one is Cupellation. Firstly, you have to add lead in the unrefined gold. Then put this mixture in hot temperature until gold is dissolved in lead. Then you will find that the base metals have been oxidized and you get lead oxide and gold bullion remains. This process of gold refining is not recommended if you have gold in big amount. You can only use this method when there are small amounts of gold.
The second gold refining method that we are going to discuss is Inquartation and parting method. Some alloys like Silver or copper may be used in it. You can add any of these alloys to gold and melt it. Then the only thing which is left could contain 25% or less of pure gold. Secondly, you should add nitric acid to it, this will flush out the alloys and leaves sludge such as gold residue. This is the second method of refining gold and now you can wash, filter and dry your gold and use it according because it is now 99.99% pure gold.
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