Shor Precious Metal Detection Liquid Gold Refining Chem

Used to determine that no more precious metal is dissolved in aqua regia or saltwater solutions. Sensitive to 4 parts precious metal per million parts acid or water. 1 bottle lasts about 1 year
To Test:
Place a drop of Precious Metal Detection Liquid on a paper towel.
Using your pipette (the big eye dropper) take a sample of the water in which you precipitated your gold. Put a drop or two on the paper towel.
If dissolved gold is present, the color will turn purple-brown or purple-brown-black. If it turns any of these colors, add some more precipitant or give it more time or heat the water. In rare instances, black can also be an indication of base metals as copper and nickle
The colors yellow, orange and red indicate the presence of an insignificant amount of platinum group metals, White indicates the presence of dissolved silver.
If no dissolved precious metal is present, the color will not change

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This will be shipped in the USA ONLY and it will be shipped directly from I.Shor in New York.