17 replies to this topic

[MDH]

Even then, oxides should barely be that much of a threat. Especially iron, tin, aluminum, etc...

[seymour]

Of course they are not, I for one regularly ball mill live compositions which include Fe2O3. However, if you read my first post I have found some flakes coming from an old rusty charcoal drum to contain a significant amount of metallic iron. I am not saying that the flakes are not primarily oxides, they are, but having found Iron in the flakes I know that there is a definite possibility, if not a probability that corroded tins may shed Iron, and who wants to play Russian-roulette with a ball mill!

Play it safe!

[YT2095]

So if the iron is not elemental, will it still retain its sparking properties or is it safer?

I have no idea, I`m not a "Pyro", but I would assume that since the iron is in an already oxidised state that it wouldn`t create sparks again, as the Sparking is as a result of hot elemental iron burning in oxygen (Air) and the result is an oxide.

but don`t take my word for this, it is at best an educated guess, as I said, I`m not a pyro and have no experience with this sort of thing.