> They are pure silver made in 1964 and 1963.    I ran the batch for
> 2-2.5 hours. I already took a tablespoon so I hope it is ok. If I
> hold it up to the light it does have a yellowish cast. thanks.
> Janine

Janine,

This worries me a bit. The pre-1964 common US coins, like dimes, 
quarters, halves, and dollars, contain a large percentage of other 
base metal besides silver. They are no more than about 93% pure, if I 
remember right, and the other metals may include nickel, tin, and God 
knows what. Some of those other metals will be toxic.

Such coins are *not* suitable for use as CS electrodes, in my
opinion, except in emergency situations and for as short a time as
possible.

If, however, you have some kind of commemorative silver medallion or 
coin which is clearly marked ".999 Fine Silver" or words to that 
effect, then you are okay, no matter when they were minted.

All common US coins after 1964 were the sandwich type containing 
copper, aluminum, nickel, and no silver. The only exception was, I 
think, some halves that were further debased, to maybe 50% silver, 
but were available until the late sixties.

I believe the mint puts out Silver Eagles that are pure enough, and 
available for a reasonable price through most coin dealers. There are 
ingots and medallions and various other .999 fine coins of other 
countries available.

Exactly what do you have?

I don't think the trace you've consumed is a problem, but I wouldn't 
use it long term unless your coins are actually .999 or better.

I'm sending a copy to you directly, as well as to the list, just to 
make sure you see it.

Be well,

Mike D.

[Mike Devour, Citizen, Patriot, Libertarian]
[[email protected]                       ]
[Speaking only for myself...              ]


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