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Metals/Lead alloy

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Question
Hi
Dr Poe, thanks for the previous  advice regarding reducing silver,sulphur during lead alloy, what about nickel how do i reduce it.

thanks in advance.

Answer
Dumi, you might be screwing up! 1st of all reducing nickel from these is beyond profit. 2nd if you are working the nickel babbitt bars from the Japanese 2nd world war, a lot of them are not what they seem.  They are massive amounts of iridium with 7 to 8% gold and are bound together with indium to have the appearance of being lead all for the purpose of smuggling iridium to Japan. Do a specific gravity test: lead is 11.3, lead with silver, nickel etc. is even less. If they read 12 or higher they are smuggler's iridium and gold.

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Christopher Poe

Expertise

The processing/refining of precious metals including chalcogenic ores like tellurides and selenides.

Experience

32 years experience in ore assaying and refining. Presently head chemist and chief refiner of a Philippine metals company.

Publications
Gold Refining Forum

Education/Credentials
Doctor of Geochemical Research

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