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   DIR Return to: 3. THE SIMPLEST CASE PLATINUM FILINGS THAT CONTAIN ...
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       #Post#: 137--------------------------------------------------
       THE SIMPLEST CASE PLATINUM FILINGS THAT CONTAIN NO GOLD
   DIR By: BigBadWolf
       Date: February 10, 2014, 9:54 am
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       Chapter 3
       THE SIMPLEST CASE PLATINUM FILINGS THAT CONTAIN NO GOLD
       Equipment and chemicals. "Acquaintance experiments." Beginning
       work; sieve; magnet; caustic; heat. The nitric acid treatment.
       How to fold a filter paper. Summary. Questions and answers
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