how do i turn silver coin to rainbow color?

2006-07-13 6:12 am
how do i turn silver coin to rainbow color?

回答 (4)

2006-07-13 6:26 am
✔ 最佳答案
Heat place it in an oven.
Sulfur is the active toning agent most of the time.

Sometimes just wrapping it in paper and leaving it on a desk for a few months does it.
2006-07-13 2:14 pm
Keep the coin over flame. Several layers of silver oxide form on the silver coin. These layers can disperse the sun light into VIBGYOR.
2006-07-13 1:55 pm
chemically you cant but physically just colour it.
2006-07-13 1:46 pm
Use dye.


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