MadSci Network: Chemistry
Query:

Subject: An electrolytic silver tarnish remover?

Date: Mon Mar 26 03:38:14 2001
Posted by Pete
Grade level: teacher/prof School: University of Marseille
City: Marseille State/Province: Provence Country: France
Area of science: Chemistry
ID: 985595894.Ch
Message:

I recently saw a sales ad on TV for a metal plate which you use to clean silver 
without polish.  You put the plate in the sink, add a couple of tablespoons of 
ordinary salt and fill the sink with hot water.  Any tarnished silver immersed 
in the water and making contact with the metal plate is cleaned so quickly you 
can see the tarnish disappearing.  If this is some form of electrolysis, where 
is the circuit (no batteries or wires involved)?  How does it work and what 
metal is the plate made of?

Other, related, questions.  If this process is so great (and on the face of it, 
it looks much preferable to polishing), why hasn't it supplanted polish?  I 
can't help feeling that it, too, removes silver with the tarnish just like 
ordinary polish, but would it remove more, or less?


Re: An electrolytic silver tarnish remover?

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