fusso
International Hazard
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Why is tin(II) chloride used as indicator for precious metals?
SnCl2 is used to test for precious metals in solution during refining. Why SnCl2? Why not other cheaper/more easily obtained reducing agents like
sulphites/oxalic acid?
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UC235
National Hazard
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Registered: 28-12-2014
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It reduces pretty much all the precious metals rapidly and has a tendency to form colloidal particles which can be used to identify the metal based on
color.
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