Roger you write: > To summarize: Silver METAL not silver ion is the active species > that keeps > water, and presumably milk, fresh. I suppose natural convection > would create > enough circulation to clean quite a bit of water or milk with > just a single > silver coin.
That is not a conclusion that can be validly drawn. The most that you can say is that under the conditions of your experiment, and using the equipment at your disposal, you could find no evidence of silver dissolution. To assume that contact with silver metal keeps water fresh, follows from not finding silver ions is not tested at all. I notice that the silver institute describes the placement of a silver coin on a plate of nutrient agar results in a zone of inhibition extending beyond the boundary of the coin. Maybe the organic content that might be expected in stream and well water (and milk) has the ability to strip ions from silver. Regards Ivan > -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Wednesday, 23 May 2001 23:42 > To: [email protected] > Subject: Re: CS>How Do Silver Coins Keep Water Fresh? I Think We FINALLY > Know > > > List: According to George Martin, "US silver coins prior to 1965 > consist of > 90% silver and 10% copper." So, if George is correct, and I have > no reason to > doubt him, all of what Frank said (see below) would be correct because I > don't believe the couple of percent difference between my > 92.5%/7.5% silver > copper alloy and coinage metal would have made any difference in > the results. > To summarize: Silver METAL not silver ion is the active species > that keeps > water, and presumably milk, fresh. I suppose natural convection > would create > enough circulation to clean quite a bit of water or milk with > just a single > silver coin. Roger > > > > > In a message dated 5/23/01 0:34:22 AM EST, [email protected] writes: > > << Subj: Re: CS>How Do Silver Coins Keep Water Fresh? Will We > Ever Know? > You Can Help > Date: 5/23/01 0:34:22 AM EST > From: [email protected] (George Martin) > Reply-to: [email protected] (George Martin) > To: [email protected] ([email protected]) > > Roger, > US silver coins prior to 1965 consist of 90% silver and 10% > copper. From 1965-1969 half-dollars and 1971-1974 (S mintmark) > Eisenhower dollars contained 40% silver (the balance is > copper-nickel) > > http://www.currentlegal.com/LegalNews/uspl1998/105-268.html > > Regards, > George Martin > > > On Tue, 22 May 2001 21:12:09 EDT, [email protected] wrote: > > =>In a message dated 5/22/01 2:45:48 PM EST, [email protected] > writes: > => > =><< Subj: Re: CS>Scientific Debate & "One Upsmanship" > => Date: 5/22/01 2:45:48 PM EST > => From: [email protected] (Frank Key) > => Reply-to: [email protected] > => To: [email protected] > => > => Roger, > => > => It is safe to say that you have concluded from your experiment > that silver > => does not dissolve in water? > => > =>Frank: Yes > => > => If that is the case, what could one deduce from the old stories > about the > => silver dollar in the water barrel? > => > => Could one surmise that contact with the metallic silver is what > caused the > => water to stay fresh? > => > => > =>Frank: Unfortunately, we were one tiny step away from being able > to conclude > =>that metallic silver (from a silver coin) is what causes water to > stay fresh > =>because I was unable to confirm that the 92.5%/7.5% silver copper > alloy that > =>I used had the same composition as coinage metal. For example, we > found that > =>for the lower grade silver alloys, copper, or zinc, or both > probably corroded > =>into DW. So I can't say for sure that coinage metal doesn't have > some other > =>germicidal metal that could corrode into DW. However, if my 92.5% > silver > =>alloy is, in fact, the same as coinage metal then I believe your > statements > =>are correct. Roger > => > => > => > => frank key > => >> >> > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <[email protected]> >
