Frank Key,
I used the verb "tarnish" as defined by Webster's " to dull the luster of ,
as a metallic surface by oxidation"
While it is true that in certain trades tarnish is used in a more narrow
sense, I prefer to use it as the result of a chemical attack of the surface
of a metal resulting in a dulling of the luster.
Thx
Frank Cuns-Rial, Chemist
----- Original Message -----
From: "Info - Silver Colloids" <[email protected]>
To: <[email protected]>
Sent: Monday, August 22, 2005 8:53 AM
Subject: RE: CS>Damaging silver
Frank Cuns-Rial wrote:
...Silver will react readily only with strong compounds such as oxygen
(tarnish)...
Silver oxide is not tarnish. When silver tarnishes, it combines with
sulfur
and forms silver sulfide. Silver sulfide is black.
Frank Key
www.ColloidalScienceLab.com
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