Stannous Color on Filter Paper

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Anonymous

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From a batch of chips, the liquor tested with stannous a nice green then changed to a lime green. Any ideas! Palladium and ?.
 
Gus,

Where is the test spot on the paper? Pd is best tested for with DMG, especially when testing a mixed metal solution.

Pd with stannous will start out orange and turn green depending on concentration. Positive Pd stannous tests also tend to fade overnight.

Steve
 
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