Author: Don Berger
Date: 2005-11-09 13:52
Yes, Sim. to the above rec's, Silver [Ag] is a moderately "active" metal, more [obviously] so than its companions in Periodic Group 1B, Copper Cu and Gold Au {Chem. 101}. It combines slowly with oxygen [air] but more rapidly with sulfur, in [polluted] air, and here via S release from sulfur [compound] vulcanization of [particularly older] hard[ened] rubber, prob. not from other [plastic] mps tho. My suggestion is to try shielding either the silver-plated U J and L J etc, via plastic "sacking", or just the mps themselves, using plastics more impervious than polyethylenes etc. Some makers may plastic-coat the silver plate, which may protectt until worn off. I'm sure other [chem-related] posters will tell you more, Robyn. Don
Thanx, Mark, Don
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