I found out that in nuclear reactors they use acid to cool down radioactive waste before they dispose of it, I thought that, considering acid has no affect on either uranium or plutonium, this would be a nice addition to the powder toy and would not break to many saves
feel free to post feedback and suggestions
thanks
tommig

@therocketeer
yes, basically

perhaps acid could absorb neutrons aswell?

@itubee
oh, ok