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Letter 20040
Testing silver plate with sulfurated
potash [Rhode Island]
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I work with a company that warehouses and distributes jewelry. A
customer said that they are testing silver plated jewelry with a 2%
sulfurated potash test with a 2 minute dip and see if the silver
plate tarnishes. Does anyone know what the chemicals are and the mix
is of a 2% sulfurated potash.
Gary M. Coken
- Warwick, RI, USA
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Sulfurated potash aka
Liver Of Sulphur
[linked by editor to product info at MisterArt] has been
used for generations to make silver black for an antique finish. Your
customer must be testing to see if the items have been properly
lacquered or other wise protected from tarnish.
Dear Reader: please choose what you want to do--
- I want to answer or follow-up on this subject
publicly (in non-commercial
fashion).
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- I want the contact information to
reach
the inquirer privately.
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- I want to post a new
question or inquiry of my own on
a different subject.
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