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Originally Posted by Mare Rosu
Battara; Great information about Sulfur changing ivory yellow.
I know for a fact, unfortunately, that rubber bands have a lot of sulfur in them, and I assume all rubber products also has sulfur in them. The rubber bands were stored in a box with some of my old Silver coins and the coins turn black 
Question, Battara, on this dagger as well as others daggers/knives that I have with ivory handles I use Renaissance Wax on them, will that protect them from the effects of ambient sulfur?
Gene |
First: Sorry about your coins. Sulfur also reacts with silver to make sulfur oxide on the silver - also known as
tarnish. This also happens on copper to produce copper oxide which is green (and poisonous) (lots of copper in brass and bronze).
Second: Renaissance Wax will protect them since it seals the ivory (also wood, steel, etc.). A very good question.
