Subject: salt vinegar reaction on silver
Date: Tue Aug 16 14:34:01 2005
Posted by Deborah
Grade level: K-3
School: Son-raise Academy
City: Overland Park State/Province: KS
Country: USA
Area of science: Chemistry
ID: 1124220841.Ch
Message:
My child cleaned copper pennies with vinegar and salt which revealed a
beautiful shiny penny (and we have read why this happens). He decided to
clean his silver 1921 Morgan dollar (unbeknowing to me) which produced a
corosive black dot effect upon the face of the coin. What can we do to repair?
Re: salt vinegar reaction on silver
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