sol wrote:
> I have read many times here that silver is NOT a heavy metal, but > researching for another reason I ran across this link that > specifically lists silver as a "heavy metal", though it does not list > silver as one of the "commonly found" toxic metals. So is silver a > heavy metal or not? Anybody know its specific gravity? > > > It is a transition metal. Atomic weight is 108, almost half the point > where heavy metals start. Gold is the heavest transition metal at > 197, and mercury is the lightest heavy metal at 200.6 The difference > is properties is remarkable, most people can wear gold (or silver) > jewelry for their entire live with no consequences, yet contact with > mercury for only a few hours can cause a lifetime of mercury > poisoning. > > Marshall > > > I am not about to give up my CS, but would like to be accurate when > conversing with people who say silver is a heavy metal. I don't want > to say is is not, if in fact it > is............paulahttp://www.lef.org/protocols/prtcl-156.shtml#intro There > are > 35 metals that concern us because of occupational or residential > exposure; 23 of these are the heavy elements or "heavy metals": > antimony, arsenic, bismuth, cadmium, cerium, chromium, cobalt, copper, > gallium, gold, iron, lead, manganese, mercury, nickel, platinum, > silver, tellurium, thallium, tin, uranium, vanadium, and zinc (Glanze > 1996).........Definition of a Heavy Metal > "Heavy metals" are chemical elements with a specific gravity that is > at least 5 times the specific gravity of water. The specific gravity > of water is 1 at 4°C (39°F). Simply stated, specific gravity is a > measure of density of a given amount of a solid substance when it is > compared to an equal amount of water. Some well-known toxic metallic > elements with a specific gravity that is 5 or more times that of water > are arsenic, 5.7; cadmium, 8.65; iron, 7.9; lead, 11.34; and mercury, > 13.546 (Lide 1992).Commonly Encountered Toxic Heavy MetALS > > * Arsenic > * Lead > * Mercury > * Cadmium > * Iron > * Aluminum >
