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It might be helpful for you to understand the reason for inquartation, which is discussed well in Hoke's book. In a nut shell, it is to permit the removal of base metals from gold alloy that contains enough silver to prevent dissolution of the gold by aqua regia. In such a case, the presence of silver protects the gold, and the presence of gold protects the silver and base metals, so the alloy can not be dissolved readily in acid (it can be dissolved with cyanide). By adding enough silver to reduce the gold content to 25% (quartering, or inquartation), base metals and silver can then be dissolved from the gold, leaving it behind in a solid, but honeycombed configuration. It can then be dissolved for purification. By the way, inquartation is an assaying procedure that lends itself well to refining.

Steve's DVD's are excellent, but don't avoid reading Hoke's book, where basic knowledge will be taught, making his productions all the more sensible.

Harold

<blockquote data-quote="Harold_V" data-source="post: 129153" data-attributes="member: 4">It might be helpful for you to understand the reason for inquartation, which is discussed well in Hoke&#039;s book.&nbsp;&nbsp; In a nut shell, it is to permit the removal of base metals from gold alloy that contains enough silver to prevent dissolution of the gold by aqua regia.&nbsp; &nbsp; &nbsp; In such a case, the presence of silver protects the gold, and the presence of gold protects the silver and base metals, so the alloy can not be dissolved readily in acid (it can be dissolved with cyanide).&nbsp; &nbsp;&nbsp; By adding enough silver to reduce the gold content to 25% (quartering, or inquartation), base metals and silver can then be dissolved from the gold, leaving it behind in a solid, but honeycombed configuration.&nbsp; &nbsp;&nbsp; It can then be dissolved for purification.&nbsp; &nbsp; By the way, inquartation is an assaying procedure that lends itself well to refining. Steve&#039;s DVD&#039;s are excellent, but don&#039;t avoid reading Hoke&#039;s book, where basic knowledge will be taught, making his productions all the more sensible. Harold</blockquote>

[QUOTE="Harold_V, post: 129153, member: 4"] It might be helpful for you to understand the reason for inquartation, which is discussed well in Hoke's book. In a nut shell, it is to permit the removal of base metals from gold alloy that contains enough silver to prevent dissolution of the gold by aqua regia. In such a case, the presence of silver protects the gold, and the presence of gold protects the silver and base metals, so the alloy can not be dissolved readily in acid (it can be dissolved with cyanide). By adding enough silver to reduce the gold content to 25% (quartering, or inquartation), base metals and silver can then be dissolved from the gold, leaving it behind in a solid, but honeycombed configuration. It can then be dissolved for purification. By the way, inquartation is an assaying procedure that lends itself well to refining. Steve's DVD's are excellent, but don't avoid reading Hoke's book, where basic knowledge will be taught, making his productions all the more sensible. Harold [/QUOTE]

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