2006-07-22 14:06:15 · 5 answers · asked by iliketodreambig 2 in Science & Mathematics ➔ Other - Science
On a true silver dollar it's probably silver sulfide, rather than the oxide, but the advice is correct. However, for valuable coins, it's better not to clean them, as the "patina" is considered a positive thing, and cleaning may actually reduce the numismatic value. If it's paper dollars, I'd say they don't make 'em like they used to ;)
2006-07-22 17:34:46 · answer #1 · answered by Julia C 4 · 0⤊ 0⤋
Items with active mold, which appears wet and slippery, should be frozen or air dried before cleaning. Dry, inactive mold, should be removed with a HEPA vacuum. Inactive mold may also be brushed off, but care must be taken to limit airborne spores.
2006-07-22 21:09:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If the dollar is silver it is likely not mold but rather silver oxide, If you are trying to preserve the dollar, leave it, if you want it to be shiny Tarnex will do the job.
2006-07-22 21:27:37 · answer #3 · answered by Sleeping Troll 5 · 0⤊ 0⤋
pay for something at the store and get rid of the bill.
2006-07-22 21:10:04 · answer #4 · answered by donna 4 · 0⤊ 0⤋
Send them all to me, I'll clean them for you.
2006-07-22 22:22:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋