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test for gold?

| General Electronics Recycling

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  1. 02-21-2012, 11:25 AM #4
    harrisvh
    harrisvh is offline Metal Recycling Entrepreneur
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    Nitric is only used to test for lower karat gold, for higher you need to add Hydrochoric acid.
    10KT - 10 mL nitric - 3.3 mL distilled water
    14KT - 10 mL nitric - 2.5 mL distilled water - 4 drops hydrochloric
    18KT - 10 mL nitric - 10mL distilled water - 30.2 mL hydrochloric



    Not going to get these from household stuff i'm afraid.

  2. The Following 3 Users say Thank You for This Post by harrisvh:

    irondale, Mulden, Scrapette
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