Dimes are not pure silver (pre 1964) they are about 90% silver. In order to make the coin last because silver is very soft they mix it with another metal (nickel I think). Nickel is toxic.
Jack How would you keep the case from melting if you did solder the times to the pennies? I keep trying to think of something that's made out of pure copper and I'm just not getting there. ----- Original Message ----- From: "Charles Sutton" <[email protected]> To: "Marshall Dudley" <[email protected]>; <[email protected]> Sent: Thursday, October 23, 2003 11:02 AM Subject: Re: CS>Zapper > Can I solder pure silver dimes over the pennies??? > > ----- Original Message ----- > From: "Marshall Dudley" <[email protected]> > To: <[email protected]> > Sent: Thursday, October 23, 2003 12:40 PM > Subject: Re: CS>Zapper > > > > I don't think pennies are a good idea, unless they make certain that old > pennies > > are used. Pennies use to be made out of virtually pure copper, but due to > the > > high cost of copper, they are now mostly zinc. Zinc is a definite skin > irritant > > for many people. > > > > Here is the history on the penny: > > > > 1793 - 1837 - 100% copper > > 1837-1857 = 95% copper 5% tin + zinc > > 1857- - 88% copper 12% zinc > > 1864 - 1962 - 95% copper 5% tin + zinc (except 1943 when they were zinc > coated > > steel) > > 1962-1982 - 95% copper 5% zinc > > 1982- present - 97.5% zinc 2.5% copper > > > > I do not think that zinc is a good choice for an electrode that contacts > the > > skin. > > > > Marshall > > > > > > > > Delmont Neroni wrote: > > > > > Question for people using the terminator zapper: have you had any > problems > > > with skin irritation where the electrodes touch? One report I read said > the > > > copper in the pennies could react with perspiration and create a lot of > > > irritation. The same web site offered an option where the copper is > covered > > > with silver, but said that could also darken the skin. > > > > > > Is this a serious problem? Can it be solved by just relocating the > device > > > frequently? > > > > > > Del > > > > > > -- > > > The silver-list is a moderated forum for discussion of colloidal silver. > > > > > > Instructions for unsubscribing may be found at: http://silverlist.org > > > > > > To post, address your message to: [email protected] > > > > > > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > > > > > > List maintainer: Mike Devour <[email protected]> > > > >
